Project Sekai Headcanons!

Personal and community-submitted headcanons for ProSeka!

[headcanons-proseka]

Introductions!

✮ Hello and welcome! ✮

This blog will act as a space both for me to submit my personal headcanons and ideas about Proseka and for user submissions! Community-submitted short stories related to headcanons will also be allowed after mod review!

Any headcanons of mine will be tagged as such (#modheadcanons and #modrueheadcanons), and community headcanons will be tagged accordingly (#communityheadcanons and #submittedheadcanons). Short stories will be tagged as well (#shortstoryheadcanons and #prosekashortstory).

✮ About the Mod ✮

The author and moderator of this blog goes by Rue and uses they/he/xem pronouns!

✮ Submit Your Headcanons! - Important Things ✮

General Things

Please submit all headcanons through asks!

Short stories can be submitted through asks or through a post submission.

Everything will be vetted before posting to ensure a safe and fun space!

You are welcome to be named or anonymous on any of your headcanons. Please send an ask if you would like to submit a short story anonymously not through the ask box!

Please let me know in a separate ask if you would prefer to not have mod comments under your headcanon! I will do my very best to respect this and fix any potential mistakes.

Headcanons do not just need to be about characters! For example, you could submit a headcanon about how SEKAIs form.

Please be patient with your asks/stories being posted, only one person runs this blog. Thanks y'all!

Important Rules & Safety

Please keep all asks non-NSFW. Suggestive asks may be okay, but will be posted or deleted at mod discretion.

Ship headcanons are allowed (minus proship content) and follow the non-NSFW blog rule.

Headcanons involving topics such as SH, abuse, and the like are allowed at mod discretion. Any post that contains such discussions will be posted behind a "read more" with appropriate warnings.

Hateful content will not be posted on this blog. This includes any suggestions that Mizuki is "really a boy" or the like. All should feel welcome here!

Please do not submit personal information!!! Be safe y'all!

✮ Thanks for stopping by! ✮

[headcanons-proseka]

some stuff that i've thought of

-Akito regrets dyeing his hair ginger because of the ginger teasing from mizuki and an(Akito is not biological ginger in my canon)

-niigo Luka is gender envy for mizuki

-Ken let An dye her hair when she was a child so thats why her child model still has the gradient

-Rui and Mizuki dated in middle school for a bit but Mizuki came out as transfem and since rui was gay so they broke upped but stayed good friends

-Mafuyu gets called "Mafufu" by emu sometimes

-All of leo/need has audhd

-Niigo poly with t4t mafumizu

-emu uses xenogenders and neopronouns

-Shizuku is aroace and is in a qpr with airi

-SEKAI's are like a digital universe so SEKAI's can glitch out sometimes

✮ Community Headcanon - Multiple SEKAIs! ✮

Thanks for submitting! :)

[headcanons-proseka]

CW: Potential discussion of sh scars (depends on how you read the ask!)

Ask: "it’s kind of sweet to think of szai tracing each other’s scars.. maybe it started after their talk on the beach in airi3 and nowadays they usually do it when they’re lying down together at the more more house. sometimes Shizuku will ask Airi to recount some of the lighter stories behind her childhood scars"

✮ Community Headcanon - Hinomori Shizuku, Momoi Airi ✮

[headcanons-proseka]

I have no idea if (SFW!!!! SFW!!!) Agere hcs are allowed trembles and shivers /SILLY But alas:

Mafuyu is an age regressor since she was like 10 or smth. N25 Miku and (Especially) Len are kind of manifestations of her regression. Please chat see my vision babyfuyu is real /SILLY

(All of nightcord know i think, Kanade probably did hours of research too lol)

✮ Community Headcanon - Asahina Mafyu ✮

Thanks for submitting! :)

[headcanons-proseka]

[Set in the future]

Mafuyu has a pet tarantula. She loves it a lot and lets it live (relatively) free in her flat. When Kanade first comes to visit, they get the shock of their life seeing this fat fucking spider scuttle across the counter whilst they try to make breakfast.

✮ Community Headcanon - Asahina Mafuyu✮

Thanks for submitting! :)

[headcanons-proseka]

Transfem rui thats it thats the hc

I love tfem rui so much

✮ Community Headcanon - Kamishiro Rui ✮

[headcanons-proseka]

Tsukasa is an INSANELY touchy person. Like CRAZY physical. His parents would often tell him not to hug them so tightly because it was near-choking and they didn’t want him touching saki too much either because of her fragility, so he didn’t get much physical touch early on, so he takes out that need on his friends. Emu reciprocates heavily, nene is okay with it every now and then (she does get slightly annoyed though and so he tends to avoid unless she asks for it) and Rui is a similar level of clingy. Specifically with Akito, he’s super touchy, too. and it’s not always just like,,, hugs and holding arms etc. he’s a bit odd, he’ll fidget with people’s fingers, pull on them until they react, squeeze hands and swing them while walking, spin people around randomly, fidget with hair and jewelry and tuck his foot around their ankle and just all of it… he sometimes hurts people while doing this but he doesn’t actually have any ill intent and it’s mostly stimulatory anyway I think? ok… I made this up for an AU but I twisted it to fit canon too because. I REALLY like it ok

Thanks for submitting! :)

[headcanons-proseka]

✮ Mod Headcanon ✮

Akito is transmasc and has presented as a man for almost all of his life. He has difficulty asking for help or advice related to this, and has ended up in some pretty bad situations for it.

The first time he tore his binder, for example, he had had it for years and was uncertain what to do. Only when his ribs started aching even when not wearing the binder did he go to Ena for advice, who promptly yelled at him for not coming sooner and then advised him to talk to Mizuki. Mizuki at the time knew very little about binding, but she did know of some good resources that Akito could use and directed him to those. Akito is incredibly appreciative for this (and would never admit that to anyone, especially Ena).

[headcanons-proseka]

✮ Mod Headcanon ✮

Nene is very sensitive to loud noises. She can project her voice just as well as Rui and Emu and almost as well as Tsukasa, however, she only does so when singing in very large venues. She prefers to practice singing acapella or with piano accompaniment (courtesy of Tsukasa) as opposed to music over speakers. Additionally, she has a special set of noise-cancelling headphones that she wears when gaming so that she can play while having the volume down low.

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✮ Mod Headcanon ✮

Airi is very good with cameras and does a lot of the camera work for MMJ. She started doing this when MMJ first started streaming from the school rooftop and needed someone who could make the shots look nice no matter the weather, and she continued on in this role afterwards.

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✮ Mod Headcanon ✮

VBS Meiko has a little cork board in her cafe where everyone has pinned up pride flags that they identify with. She doesn’t want to ever take them down so she decorates around them, such as during the winter holidays when she puts tiny paper stars and Christmas hats on top of the flags or Halloween when she uses the flags as backgrounds for paper cut-out jack-o-lanterns.

[headcanons-proseka]

Heya!

Not a headcanon but I just wanted to apologize for the long break and let y'all know that I will be resuming activity on this page!

[headcanons-proseka]

Natsume and Rui hcs!

- Natsume inspired Rui to take her transition further. Theyre both tfem and Natsume has been on hrt and in tfem spaces for longer so has more knowledge and was able to help Rui with taking more steps in her transition

- Rui was already tfem before she met Natsume, but was really unsure of how she wanted to continue in her transition. Natsume immediately realised Rui was struggling and decided to help her, as she had been in the same situation before

- They still meet up sometimes to discuss directing choices and see plays and shows together. Natsume always tries to make time for meeting with Rui despite her horribly busy schedule as an idol

- Rui started listening to Switch's music after the astro fes, and she really loves their style. Her favourite song of theirs is Romancing Cruise (ofc biased to Natsume's song lol)

- Natsume helps Rui out with her directing sometimes. If Rui's stuck on any lighting choices or special effects she'll ring up Natsume and they'll discuss it together

- They have adopted nicknames for eachother, Natsume calls Rui "Ruuruu-chan" and Rui calls Natsume "Majou-chan" (witch-chan)

- They've adopted eachother's mannerisms; Rui has adopted some of Natsume's speech quirks and started using katakana on the end of some of her sentences if she's feeling like it, and Natsume copies Rui's crazy facial expressions sometimes

✮ Community Headcanon - Kamishiro Rui ✮

[headcanons-proseka]

shiho used to be an idol for like a few months when she was younger. she was in a duo with shizuku, and then she quit and shizuku joined a group (cheerful*days was formed closer to the main stories, and shizuku left her old group to join it) and shiho's idol career became lost media.

✮ Community Headcanon - Hinomori Shiho ✮

✮ Mod Rue Notes ✮

Side note but I love looking up Shiho's cards (especially her trained ones) and seeing her bass in like 80% of them minimum.

Thanks for submitting! :)

[headcanons-proseka]

Hmmmmm... t4t kanamizu (kanade he/they, mizuki she/her) where kanade, after first making the realization, he can't bring himself to put away the girly clothes they wore as a kid because how much their mom liked them and seeing her child in them, so he goes to mizuki and they talk it out together and then cuddle :) kanade also doesn't want to cut their hair so mizuki simply trims the ends a little and proposes some cute side-low ponytail hairstyles for kanade to do

✮ Community Headcanon - Yoisaki Kanade, Akiyama Mizuki ✮

✮ Mod Rue Notes ✮

Super cute headcanon, I can imagine Mizuki having a lot of fun helping Kanade find gender-affirming long hair styles!

Thanks for submitting! :)

[headcanons-proseka]

narcoleptic shizuku and insomniac airi 🤔 does this make sense

✮ Community Headcanon - Shizuku Hinomori, Airi Momoi ✮

✮ Mod Rue Notes ✮

I hear you on this one! I'd be interested in how that would affect their shows and what the MMJ members would do to support each other during times of extreme tired/fatigue, especially if Shizuku deals with cataplexy.

Thanks for submitting! :)

[headcanons-proseka]

✮ Mod Headcanon ✮

The Otori family has a tradition of throwing large egg hunt parties every Easter at their estate for their children and children's friends. When Emu entered high school, her dad originally planned to end the tradition. However, Emu got so upset that her brothers successfully lobbied her dad to continue the hunt. Emu is fiercely competitive in these hunts and even took down Tsukasa one year by accident when trying to grab an egg.