Do you have any tips on how to write for yandere?,Could really help!
I can give some advice, sure, but Yandere can come in several different styles, so it's difficult to give blanket advice for it.
Generally, Yandere types are NOT aware that their love is extreme. Love itself is extreme and there's nothing abnormal about how passionate they feel. There are exceptions. Some Yandere are terribly aware that what they're feeling - and what they do because of it - is wrong, and they'll usually take steps to mask it until they're triumphant.
Yandere types who aren't aware obsession is bad, will often give away the game before they've ensnared their darling, but sometimes luck can be on their side and things just fall in place enough they don't get exposed.
Passion and Obsession will often result in them terrifying their darling, but not harming them. At least not permenantly.
Yandere will often imprison their darling - either because they want to keep them all to themselves (how dare the world glimpse you! // you're all mine, no one else's!), or because they're fearful of losing them (you cannot leave me! // I won't let anything hurt you).
At the core is obsession and CONTROL.
If the obsession and control are in a character who is brash and impulsive (more of a Eustass Kid vibe), then they're likely to be violent toward other people openly, and physical with their darling (bodily removing them from places or trying to force them elsewhere).
If those traits are in someone kind/social (Sabo >.> ), then they're more likely to undermine those around them, or set up schemes to get the outcome they want without tarnishing the public face they have (this can easily backfire though, if they push too hard).
Cold and calculating yandere will often plan for months (Crocodile, anyone?), if not years, before making a flawless move. It's more likely that no one will ever know that they are obsessed - unless something outside their control steps in (another love interest, friends they can't manipulate that have the darling's best interests in mind, etc.)
Kind and experienced yandere (I think of Marco when I think of this type), seem the least likely to be found out. they'll charm and delight everyone around their darling and no one will question their love unless things go REALLY sideways.
Doflamingo would be a social and experienced yandere - unhinged and aware of it, but you're perfect, and he deserves nothing less. He'll make sure you see he's perfect for you as well, one way or the other. And with his connections and social standing, you don't stand a chance.
And all these can be on a slider - awareness, obsession, passion, desire, experience, personality - there's a lot of variables.
The best advice I can give, is probably good advice for any kind of writing: Remember that any personality type/trope/concept is never going to be set in stone. There's wiggle room and you can stay in the middle of the path, or you can push the edges. You're not "boring" by staying in the popular part of the path, and you won't be automatically "amazing" by pushing boundaries.
Think more of what kind of experience you want to create, and then mold your parameters around that.
And don't be afraid to let the story go its own way. Maybe you want the yandere character to be found out, and maybe the story you build ends up working better with them actually "winning".
You can always write another yandere story after that one, and use what you learned to guide the story better. And hey, for everyone else, it's two cakes and not one \o/ so win-win.
