Death Note Headcannons

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[dn-hc]

New Pin Post

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First, I'd like to apologize for the hiatus. I have been dealing with a lot and I want to thank those of you who stuck around and helped my blog grow during these difficult times. I greatly appreciate all of you.

Asks are now OPEN

However there will be a few changes.

About This Blog's Content

I primarily focuse on L, Light, Mello, Matt, and Near.

However, I am open to side characters as well.

I do not do wish fulfillment content. I will answer asks by how I believe the characters would canonically respond. Sometimes, I may include supporting evidence for my beliefs in the comments.

Due to staying in character, I struggle writing romantic content for Near and Light because it's hard to keep them in character in a romantic context. Near canonically has virtually no interest in any human connections and possibly has Schizoid Personality Disorder. Light is canonically a clinical psychopath. So romance with these two is very difficult to write.

Emotional/Mental Wellbeing/Age Guidelines

This blog is recommended for adults only or at least teens with parental guidance.

I will not be including trigger warnings and I write dark content as is. Please keep this in mind and be mindful of your mental and emotional wellbeing.

My Preferred Content

I mostly enjoy slice of life, smut, and angst.

I also enjoy character analysis and questions regarding the characters' fundamental beliefs and philosophies.

I don't particularly enjoy fluff, as none of these men would be fluffy boyfriends, but am open to writing it when requested.

AU's I find particularly hard to write, but I am willing to try if I believe I can do an adequate job at it.

Off Limits

Glorifcation of abuse, sex crimes, or bigotry.

This does not mean you have to avoid these topics all together, just don't glorify them. Example of something okay to ask, "How would the guys respond to their significant other using slurs in a humorous manner?". Example of something not okay to ask, "Can you write a story where the guys bully a minority with their partner?".

Roleplay content is entirely off limits.

Be Specific

When sending asks, please specify things like which character(s) you want your ask to be about and which format you prefer.

If unspecified, the default will be all five of the primary guys in headcanon format.

The formats options are headcanons, short story, asking the character directly, and thoughts/feelings/reactions.

Please also specify circumstances or I will fill in the gaps. Example: If asked how the characters would respond to finding out their girlfriend is working with Kira, but does not specify how they found out, I will fill in the gaps on my own.

Engagement

Please interact (like, comment, reblog) when you can.

And feel free to challenge my interpretations. I can promise you, it will never hurt my feelings if you believe my interpretations are wrong. I actually enjoy the engagement and being exposed to new information so I can update my internal views when applicable.

If you see areas where it could be expanded into something better, feel free to suggest that.

Anon Asks

The anon feature will be closed to prevent spam.

However, if you would still like to request an anonymous asks, feel free to DM.

Please refrain from sending an anonymous asks for non-sensitive topics.

Please Be Patient

This is NOT my job. It is merely a hobby. This means it may take some time to respond.

Please do not ask if/when I will respond. I will get to it as soon as I can. Asking this will result if in your asks being rejected.

If for any reason I will not be answering, I will not leave you hanging. I will DM you and let you know I won't be answering and why.

Please do not let this discourage you from asking future questions. I genuinely enjoy receiving asks from you all and I feel terrible when I cannot fulfill them in a timely manner, but sometimes there are reasons I feel I cannot answer.

Final Note

I will no longer be forcing myself to answer asks that I am not interested in due to not understanding the assignment, having answered a similar question before and having nothing to add to it, or simply having no strong opinions on the matter.

This is purely to avoid making this blog feel like an obligation and going on haitus again instead of something I truly enjoy.

I love receiving your asks and am excited to receive more in the future. I sincerely apologize that some boundaries had to be set, but it was necessary for my own mental wellbeing. Thank you all so much for your support and understanding and I hope you can enjoy this blog as much as I do! 😊

[dn-hc]

The poster child for that one kid who was gifted and lil bit smug about it. But then realized in adulthood all being gifted means is you're completely alone, no one cares about you as a person, you're over exposed to the worst of the worst, and you're over responsible for managing everyone else's problems while no one gives a FUUUUUUUUUUUCK about yours, but doesn't have the luxury to just completely burnout *cough* Matt *cough*

[dn-hc]

I love how the entire fandom has unintentionally, unanimously decided that between L and Light, Light would be the one to carry their baby

[dn-hc]

Forget spirit animals

For your choice of Death Note characters, what's their spirit mythical creature?

Anything from well-known dragons to dnd fiction on the table

So sorry for the delay.

Unfortunately, I don't feel I can answer this as I'm not well-educated in mythics.

However, I greatly appreciate the ask and please don't let this deter you from asking more in the future when I open my ask box again - I promise it's nothing personal, I'm just not informed enough on mythics to answer this.

Also, I received your other ask and look forward to answering it soon :)

[dn-hc]

Ummmm I’ve been sitting here for a while trying to think of how to ask about this but ig I just will aha .. how do you think L would respond/ think of a partner who was abused when she was small, so ends up reporting many abusive men to the FBI, (sometimes coordinated group reports) and even sometimes gets convictions out of it? She’s also autistic and has various PTSD triggers (would he help ground her with them?) 🥺

I have various thoughts myself but I love hearing others too ❤️

(Sorry for the delay, anyhow let's get into it)

L doesn’t interpret people through idealized or emotional lenses. He assesses what they do, why they do it, and what patterns emerge.

So with a partner like the one you described:

On her past abuse

If her recounts of the abuse were consistent, added up, didn’t demand anything from him, and presented as data to explain her behavior - or neutral information about her history - he would take it seriously and be mildly sympathetic and considerate, but not overly emotional about it.

However, if the past abuse is framed as a trauma that he is meant to soothe, or as an excuse for poor behavior, this is where he would start to view the framing as inefficient or misattributed, and disengage from it rather than validate it

On her reporting

This is where L becomes skeptical. 

If she knew how the FBI actually works and had evidence to support her reports, it would be largely neutral to him - however, the emotional motive wouldn’t go unnoticed and he would monitor that. He’d mostly keep his distance from it unless a specific report interested him. 

However, if her reports are unsupported by evidence, don’t lead to outcomes, are driven by emotion and bias, this would quickly reduce her credibility in his eyes and be categorized as inefficient or unreliable behavior.

On autism / PTSD (self-claimed or diagnosed):

L doesn’t care much about labels. He focuses on needs and behaviors.

If the label can be used to give a logical explanation for a behavior, he sees it as neutral to positive. If it’s just a term, it’s irrelevant. If it’s used to justify behavior without addressing it, he would see that as a logical inconsistency and take issue with it.

On Grounding 

He isn’t emotionally soothing in a conventional sense.

However, he is willing if it’s not constant and not demanded. 

L isn’t uncaring, he just doesn’t want a partner’s emotional state to be his full-time job. He prefers a partner who usually self-regulates, but he isn’t adverse to co-regulation if self-regulation fails - he’s adverse to co-regulation being frequent and treated as the default.

His regulation looks more like minimizing exposure to triggers and offering consistent, repeatable methods to stabilize - not emotional reassurance, comfort, and nurturing.

Overall 

L is also not someone who validates conclusions without evidence, even in a partner. He would separate what can be verified from what cannot.

[dn-hc]

First of all, love your blog it’s literally the best thing to scroll through. Second of all, could I request head canons of the DN boys with an s/o who’s hellbent on asking them very random/silly questions and just expects them to know the answer, like ‘If I stared directly into the sun for an extended period of time, would my eyes shrivel up?’ (Bad example but hopefully you get what I mean 😓)

Lmao I’m so sorry for this random ask it just popped into my head

Most sincere apology for the delay, life's been... bad -_-. But anyhow, thank you so much. :) I greatly appreciate that. Anyhow into the headcanons

L Lawliet

He would always answer the questions (provided he's not absorbed in a case)

At first, he pauses - not because the question is strange, but because he's deciphering if you're testing him, joking, or genuinely curious.

Then he answers, accurate, concise, a little dry, "No, they would not ‘shrivel.’ The retinal cells would sustain irreversible photochemical damage. You would likely go blind.”

If you keep doing it, he starts anticipating it. You: “If I drank lava—” Him: “You would die.”

Over time, he becomes quietly entertained. Not outwardly amused, but he keeps engaging, which is the tell.

If you confidently expect him to know, "You seem to assume I am an encyclopedia. I am not… but I do know this.”

L treats it like micro-stimulation. Random questions = low-stakes thinking exercises. He approves.

Light Yagami

Light’s reaction depends heavily on how you frame the expectation.

If it feels like you’re testing him: He answers immediately, correctly, with a faint edge of superiority, “Obviously not. The damage would be to your retina. It’s basic biology.”

If it’s clearly just random curiosity: He still answers, but there’s a brief internal, “…why are we discussing this?”

If you do it often: He starts preemptively refining your questions. He may correct your phrasing, “Your assumption is flawed. The issue isn’t ‘shriveling,’ it’s cellular damage.”

If you expect him to know everything: He likes that, so long as he can actually meet the expectation.

Light engages, but reframes it into intellectual superiority, rather than playful.

Mihael Keehl

Mello’s first instinct is, "...Are you serious?"

He will answer, but with attitude, “No. Your eyes don’t ‘shrivel,’ they burn. Don’t be stupid.”

If you keep asking: He gets visibly irritated, but doesn’t disengage.

He starts answering faster, more bluntly, sometimes mid-bite of chocolate.

If you look at him like you fully expect him to know: That hits his pride, “…Yeah, I know. Obviously.”

Over time: He develops a weird habit of answering before you finish the question, just to prove he’s ahead of you.

Mello is annoyed—but he participates anyway, because backing down would feel like losing.

Mail Jeevas

Matt is the only one who might not answer seriously at all.

First response, “Yeah, they shrivel like raisins. Instant.”

He’s fully aware you expect him to know… and chooses chaos.

If you push for a real answer, “Okay, fine, no. You’d just go blind. Still wouldn’t recommend it.”

If it becomes a pattern: He starts making a game out of it. Sometimes correct, sometimes completely fabricated.

Occasionally, he’ll answer correctly without warning, like, “Photochemical retinal damage.” Then goes right back to nonsense the next time.

Matt treats it as entertainment, not inquiry.

Nate River

Near actually takes the question at face value.

He answers calmly, almost absently, “No. The tissue would not contract in that manner. The damage would be degenerative.”

While answering, he’s stacking blocks, not making eye contact, already half-focused elsewhere

If you keep asking: He does not get annoyed or amused. He simply… continues answering.

If you expect him to know everything: He neither accepts nor rejects it, “If I do not know, I will say so.”

Near treats your questions as neutral data requests—no emotional weight attached.

[dn-hc]

How would they feel like if a classmate asked them for help?😭 like to study or to help with a subject in school would they help or tell them to do it themselves LMAO

Sorry for the delay

L Lawliet

He would help, but selectively.

He doesn't help out of kindness or social obligation. He'd only help if he was interested, the person showed genuine effort or potential, or had some kind of utility to him (interpersonal maintenance if he cares about the person, information, stimulation).

If someone lazy just wants the answers handed to them, he'd refuse and quickly disengage.

He doesn't feel burdened or altruistic about it, it's neutral to him - maybe mild curious.

When he helps: He does not spoon-feed answers. He breaks into logical chains and probabilities. He'd likely test their understanding, then observe them handling a problem independently, then releasing them to their own devices.

He remains calm and precise. Possibly dryly unimpressed if they don't take it seriously or seem like a lost cause.

He's more focused on teaching them to think critically and understand than teaching them how to pass.

If they struggle, he doesn't comfort, he just reframes. The most one can expect is mild encouragement if he sees genuine effort and that they almost had it.

If they waste his time, he disengages without warning.

Light Yagami

He would help often, but not out of kindness. It would be to maintain his image of being intellectually gifted, friendly, and admirable.

He has mild superiority complex about and can become irritated if the person is too slow, but he'll mask the irritation with performative encouragement.

If the person is really slow, he may lie to convince them they're doing a good job and that they've got this, just to end the interaction.

His help is clear, structured, almost teacher-like. He walks through steps and anticipates confusion, mitigating it preemptively. He's very good at making things sound simple.

He may, however, steer them towards his way of thinking instead of encouraging independent reasoning.

Mihael Keehl

He would help reluctantly and only under certain conditions: he's in a good mood, he likes the person, or his ego is involved.

If someone incompetent or overly dependent asks, he will snap, "Figure it out yourself!"

He'd be mildly irritated at first, but he'd become engaged if the material is challenging or prideful if he gets to demonstrate his superiority.

His help is direct, fast-paced, and often impatient. He explains once and excepts you to keep up.

If they improve, he becomes more invested, prideful, and less hostile.

But if they don't, he may take over out of frustration or simply disengage and make them figure it out on their own.

Mail Jeevas

He would likely help if it's low effort, he likes the person, or he's just bored.

He's mostly indifferent about it, but can become amused if the person doesn't take it too seriously.

His help is relaxed and informal. He's likely to use shortcuts, tricks, or analogies. He may even turn it into something game-like.

He doesn't over-explain and adjusts to the person's pace easily.

He becomes more supportive and laid-back if they struggle, but can become frustrated and disengage if they consistently don't get it.

If they start relying on him too much, he starts deflecting their request or continuing to 'help' while not actually being helpful until they just stop asking.

Nate River

He would rarely help. If he does, it's because he finds it intellectually interesting.

If it's something simple, he may provide a brief bit of advice or simply disengage without concern for politeness. He has extremely low social obligation, so he wouldn't help just to be nice.

He is largely detached and doesn't care if they succeed or fail. At best, he may feel mildly curious.

His help is minimal but precise. However, he has a tendency to skip steps that he considers 'obvious' and often answers the core principle rather the exact question.

He doesn't adapt easily to their understanding level and likely continues his own activity while explaining.

If they struggle, he doesn't elaborate unless prompted. He expects them to bridge the gap independently.

[dn-hc]

Random L Headcanon

This man would have NO boundaries in a relationship.

You think you're going to get a little privacy in the bathroom? 🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣

You think HE'S going to lock the bathroom door, or even close it for that matter? 🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣 (We even get a frame showing he doesn't chose the door)

That gross habit or weird hobby you have that you only do when you're alone? L's going to be there like 👀👀👀 whatcha doin

That private journal, your phone, your laptop? L: Don't mind if I do.

Your medical information and doctor appointments? L: Don't mind me, I'll just be sitting here eating cake, asking about dinner plans while the doctor palpates your breasts

Your banking info? L: You mean OUR banking info?

Your personal belongings? L: Mine too

You make food? L: Oh, looks like we're sharing

Your 'me time' 😉? L:🦵 👀🦵 Why are you doing it that way? Is that pleasurable for you?

Like, he literally just wants to be within proximity at all times and know everything about you.

Ironically though, and on the plus side, he's the least judgmental partner you'll ever have.

On the down side, setting boundaries with him may arouse suspicion or a sense of rejection and displacement, so you'll always have to explain WHY a boundary is being set.

[dn-hc]

What do you think the MBTI personality types of Matt and Mello are (and others too if you'd like to include them)?

Sorry for the long ass delay 😅

L Lawliet

INTP

I see a lot of debate between INTP, INTJ, ISTP, and INTJ.

But I personally think N over S as he's quite intuitive and rely on inference more than simply what can be seen.

And P over J as he's does have rigid tendencies but seems to be more open-minded and flexible.

Light Yagami

INFJ

Most takes I see tend to go with ENTJ.

However, he has extroverted tendecies (good social skills) rather than being truly extroverted (enjoying social interaction and becoming energized through social activity).

Also he seems to make his decisions based more on his own feelings and opinions than fact 🤷🏻‍♀️

Mihael Keehl

ENFP

This guys is definitely a social creature.

And he seems to work on inference and instinct.

Makes his decisions based on feelings (even though he is smart).

Dude never has a well thought out plan. He's an adapter, not a planner.

Mail Jeevas

ISTP

This dude would never speak to a soul if he didn't have to.

Focused on the world around him instead of possibilities.

Even though he seems to make his decisions on a whim and based on how he's feeling, he actually thinks things through more than one expects.

Dude's a drifter.

Nate River

INTJ

Shut in for life

Focuses on deduction.

Facts don't care about your feelings.

Plans the exact number of breaths he'll take in a day.

Additionally

Misa - ENFP

Soichiro - ESTJ

Aizawa - ESFJ

Mogi - ISTP

Matsuda - ESFP

[dn-hc]

Maybe Isekai'ed into death note headcanons

I apologize for the delay, things have been crazy 😂

Anyhow, I don't feel I can answer this with any real substance as I don't understand the prompt. But I appreciate your ask and feel free to send more in the future when I reopen my ask box 😊

[dn-hc]

Any omegaverse headcanons? What do you think they would be, What would their scents be, etc

I apologize for the delay, things have been crazy 😂

Anyhow, I don't really do omegaverse content as I don't know much about it. But I appreciate your ask and feel free to send more in the future when I reopen my ask box 😊

[omnihilo]

I know this has been debated forever butWHAT COLOR ARE THIS MOTHERFUCKER'S EEYES??? GREY, BROWN, BLACK, OR BLUE??! 🤬🤬🤬

[dn-hc]

They're grey, which can sometimes appear black. And technically, irl, grey eyes are a variant of blue. So the most accurate standard classification would be blue, but they appear grey.

[deathnoteacc]

Death Note Ask Game

~spoiler warning~

1. who’s your favorite character?

2. least favorite character?

3. what do you think about [specific character]?

4. who’s your favorite underrated or obscure character?

5. how do you feel about Kira’s idealogy?

6. was L a good person?

7. was misa just as guilty as light?

8. what do you think [specific character] would have done if they had gotten the death note?

9. what would you do with a death note?

10. do you ship any characters?

11. what do you think about [specific ship]?

12. manga or anime?

13. Light or L?

14. Ryuk or Rem?

15. Near or Mello?

16. who do you believe is the smartest character?

17. what are your thoughts on season two?

18. what do you think about Wammy’s House?

19. was Near a worthy successor of L?

20. did Light deserve to die at the end?

21. if you could revive any character, which would you save?

22. which moment was the most painful to watch?

23. what was your favorite moment and why?

24. any headcannons you want to share?

25. ramble on about whatever you’d like to

[oghostfucker]

B made a point to exaggerate Ls behaviour even in the smallest of things and its hard to tell what parts of him are "L" and whats real, but what if his whole aggressive top thing was also him mocking L

It would make sense since L just kinda had his own special set of rules in wammys house (or in Bs logic, wasnt submissive to the already existing rules)

Or did B just assume L was a top because he liked to have control over cases, or did he see something we didnt...

[rainbowfairytale1]

Perhaps maybe Beyond was simply hoping L was willing to top (him).

[dn-hc]

B for Bottom

Alternatively BB for Bottomest Bitch

[kiyomitakada]

i greatly enjoy the "lying monster who plays with human lives like barbies" flavor of L characterization myself but i have been spinning around all his more compassionate moments in my head recently (visibly repressing ukita and naomi; ordering all cars off the highway they're chasing higuchi on; asking the other task force members to not look at the yagami household surveillance footage for soichiro's sake; etc) in conjunction with the way he genuinely would rather sacrifice civilians to catch kira than save them with even the mildest possibility kira would get away; and i am thinking about how little we really get into his head and i do wonder how he feels about his job, because he never voices regret out loud but we get to see him think twelve fbi agents dead… twelve precious lives… and so maybe he does feel guilt for who he is, what he does, but ultimately does it matter? they're still dead. he still tries to murder a prisoner to test the thirteen-day rule. corpses don't care about motive. you're just a childish killer playing at divine retribution. what im trying to say is that l lawliet could be representation for a rarely depicted demographic: high empathy people who suck

[dn-hc]

I think this all adds up to something people consistently miss about him and that is that he is not cold, he is not ruthless for the sake of it he is not sadistic, he simply operates on a utilitarian mindset. He will do what NEEDS to be done regardless of how he or anyone else feels about it.

He never causes harm simply to cause harm. He does it out of necessity, out of needing to minimize harm. And yeah, he likely doesn't enjoy causing harm, probably hates himself for it, then reassures himself that it was necessary, then distances himself from truly feeling the weight of it just to remain functional.

He doesn’t suck, it's just all the hard choices fall on him.

[dn-hc]

Someone Check on Your Girl, Sachiko. PLEASE!!!

Like can we, just for a moment, talk about Sachiko.

I have been in this fandom for EONS and NOONE has EVER talked about this poor woman.

1. Her son is a murderer.

2. Her son dies.

3. Her husband dies.

4. Her husband dies BECAUSE of her son.

5. Her daughter is left so severely traumatized she requires round the clock care.

6. Her daughter is in this state BECAUSE of her son.

This woman lost her entire fucking family. BECAUSE of what she birthed.

And yet she remains functional enough to care for the shell of her daughter. Because that's all she has left.

[corviiids]

the best death note joke format will forever be L asking light a simple question in which logical answer A might increase the likelihood of light being kira and logical answer B similarly might increase the likelihood of light being kira and after a short internal struggle light comes up with answer Y, which no human being has ever thought of as being a normal response in all of living history

[dn-hc]

The funniest part is answer A would increase his odds by 1%, answer B would increase his odds by 10%, and answer Y increase his odds by ♾️%