As someone who is way too attached to yandere characters I want to add my 2 cents on what kind of yandere I think they all would be. Iāll go in the order the op listed them in.
Guy is a possessive and brutal yandere; the closest comparison to what I picture his behavior to be a dragon guarding its hoard.
Heās the type who could and would lock them in his room and prevent them from escaping it. Heād also likely force them into āwillinglyā signing a contract to bind them to him.
Everyone would know, and no one would do anything about it.
Jasper is a cunning yandere; the type who wouldnāt let himself be found out. Ever. Heās a smooth talker who knows how to charm someone who likes it proper or wild. Heck, heād probably figure out if his love liked himself or Sirius more just from trying to get close to them and make his move from there.
That being said, Jasper is a professional. He wouldnāt let them get involved in his work, or even know what it is. Heās been playing 4D chess with someone who thinks theyāre playing connect 4.
If someone ever had to be ātaken care ofā, his love would never know. And if they figured it out he could probably manipulate them into understanding. Heād never do that without reason after all.
The only one who would know the extent of his feelings is Guy, who would have clocked the shift in his valetās behavior instantly. No one else would ever have to. Not on his watch.
Toa is the type, especially at the beginning, who would let his feelings go. Heād likely recognize that isnāt normal and try to brush it aside. I imagine his feelings would scare him.
If his obsession kept pushing the connection I imagine heād draw very careful lines for himselfāespecially because he knows the risks. He doesnāt have as much say as he wants to. I think that he would be constantly worried his father would disapprove and because of that push his lover to become someone he knows he can hold as close as heād like. In other words, WAY harder than he pushes MC in canon.
If they give up under the weight of his pressure and expectations, he would likely have lost them to the dangers of politics anyway. He knows that. Heād let them go. But if not, heād do everything he can to keep them safe at his side.
He could never bring himself to kill out of jealousy. That crosses a line that scares him far too much. But everything else is fair game.
Everyone would know, but they all would know how much stronger it had made him. And if he wasnāt strong enough, heād push past his limits because theyāre worth more than he would ever value himself to be.
Knight would be an awkward yandere who just fails to be a yandere. Heād probably ask for help because he doesnāt know what to do about his feelings (heās a natural tsundere) so he would get straight up coached for how to build a relationship the normal way.
Toa and Dewi would not let him descend into the madness of obsession and would absolutely keep him in check if they feel heās stepping on his loveās rights and boundaries.
And to be honest, his love would probably have figured it out not long after his feelings started burning too hot, and their reaction would likely dictate how Toa and Dewi guide Knight forward.
āThey arenāt interested. Let them go.ā āButā!ā āLET THEM GO.ā
Fenn is like Jasper in a lot of ways. Heād be cunning and playful with them, heās dealt with feelings like these before after all. He knows theyād be terrified if they knew.
If they were one of his date companions heād likely slowly start only choosing them, and cutting ties with the rest as a natural result of that. If not, theyāre his new favorite toy, and the same thing would happen anyway.
Violet would notice immediately and encourage him, but he probably would tell her the extent of his urges and sheād change her tune a little. āDonāt do that, but if theyāre interested in youā¦ā
Heās also likely able to tell if theyāre interested, letās be real. Heās very romantically informed. Heād tease them if theyāre interested, luring them closer to him until they donāt want to be apart from him either. And if not, heād find some way to make them. He would change himself to be something they wanted, anything they wanted. What part of himself was worth holding onto anyway? He hasnāt been himself for a longer than he wants to remember.
He wouldnāt let them go, but heād make them think that growing to love him was their choice.
Roy is the sweetest yandere. Heād trap his love like a fly in sweet honey. He would also likely be terrified of the force of his feelings, but unlike Toa, he wouldnāt fight them. He knows how to smile like thereās nothing in his heart after all. Heād aim to ensure that no one ever knew, so very few things about his courting style would look different.
Only Sherry and Grayson would notice anything remotely off with Roy. There is a 95% chance that Sherry tries to set them up, and Grayson helps. That is who she is. She knows Roy REALLY loves this person, she doesnāt know the rest. And if everything goes well she never needs to!
He absolutely would āstrongly encourageā (threaten) people to stay away from his heartspell, and if push comes to shove, he would use ancient magic. His book 1 (as much as that plot feels stupidly ooc to me, itās canon) proves that.
Heād make them love him, no matter the cost.
No one would ever have to know he did!
Grayson is the shy yandere and also terrified of his own feelings. He would avoid being in his loveās presence as much as possible, and not know what to do if they kept chasing after him regardless.
Sherry and Roy would try to set them up, and heād just be like āthanks, you shouldnāt have. You really, really shouldnāt have.ā
I imagine heād confess his obsession very quickly. Heās just a naturally honest person and often finds his emotions uncomfortable.
So I imagine, if they werenāt completely deterred from hanging out with him afterwards, the full weight of his feelings would only come out when heās drunk.
He doesnāt want random kisses he wants THEIR kisses, and heās going to fight anyone who denies him of them!
Lynt is a quiet obsession yandere. You wouldnāt know thatās what he is if you didnāt know what you were looking for.
Heād seek them constantly for snuggling and dote on them (and have Tino do so as well) whenever he can.
His arranged marriage? Itās now to them. They donāt know that yet. Heās waiting to surprise them.
His presence would scare off all those who try to get closer than him. His isolation tactics would be slow, subtle, but enough to ensure that no one is going to pry them from his soft, gentle hands.
They donāt need anything else! He doesnāt⦠why would they?
Tino does the same thing, but mostly by accident. Partially. He gives them gifts, invites them on dates, and offers them comfort, but insists they donāt have to accept.
Heād just endear them to him enough that heād be like āoh, weāre dating now. When did that happen??ā
He might sometimes forget about Lyntās things and that would be the only noticeable thing to prove how deep his feelings run.
Rio is what I like to call the ālong leashā yandere. He is the center of his loveās social life. That is intentional, kind of⦠because it means every path they take will bring them back to him. He is their sun, and they wander only where his light reaches. How else could he keep them safe?
Thoma would know, and not have any idea what to do about it. Itās not like it hurts anyone, right? Rio wouldnāt do that⦠not unless there was real danger. Or they wanted to try leaving his side.
Rioās jealousy burns brighter than a thousand suns. If they have a new friend, he has to be their friend too, otherwise his silent, burning judgment will scare them off. But thatās not that big a dealā¦!
Not unless his ancient magic can drain the strength of people too.
He is absolutely the type to turn to murder again and again if he gets a first taste of blood with no repercussions. They can fertilize his gardens!
Lance is absolutely the silent observer yandere.
Heck, his love might not even know he exists by the time everyone around them is avoiding them and his eyes following them. Heās not good at approaching people.
Really heās content to watch them from afar. Getting close would set his heart in overdrive and even as heād be burying a body for them heād be in denial that he loves them.
I imagine that Lou would step in very quickly. Like after Lance almost killed someone for them. Heād immediately pair them for some project he made up specifically to step them up and threaten Lance with expulsion if it happens again.
And if that successful gets them together, well⦠Lance is glued to their side like someone made him into their shadow.
His obsession is obvious close up, and terrifies them into staying close.
Also yes, he would 100% stage a coup against Addis for them.
Dia is the ā*grabs their hand after seeing them for the first time* this is mineā yandere.
I imagine heād brainstorm with Lou on ways to get with them, and then Lou would just partner them on a project, ignoring all Diaās suggestions, and Dia would just go āyeah, I can make this work.ā
Like Fenn heād tease them into getting close, to want more of him. Heās got a pretty face and he WILL use it. And every other method at his disposal.
Jay also likely coached him in flirting too when he found out what he was doing. Jay used to be a real charmer so Dia getting those skills would make him unstoppable.
And if they want to cut ties heād just say āno you donāt.ā And pretend nothing happened.
Heās like parasitic mold; heād just grow on them, and they canāt do anything to stop him.
ā¦Letās talk about Lou.
Absolutely nothing would look different about Lou in a stable relationship. But if it started to fracture I fear he would lose it.
Lou couldnāt just do a yandere simulator, he could do WORSE!
Heās the most powerful person on the isle, with a deep understanding of magic and manipulation tactics, and worst come to worse, legal actions he could take.
Lou already abuses his governing powers, he is not above throwing someone in prison if it will keep them close to him while he figures out how to fix their relationship. He could BS a reason like no bodyās business, and keep them there to negotiate a solution for their relationship problems.
Heck, he could probably make them believe Iritium is chasing them and send them to the Vananās sanctuary! Boom! Not going anywhere!
And if push, really, REALLY comes to shove, and he gets overly desperate, whatās stopping him from⦠convincing them to stay. Using ancient magic.
He could just rewrite their memory to make them forget whatever issue that caused their rift ever happened! Make them believe they actually did want to stay with him. Heās such a sweet paramour after all, he never MEANT to do them harm!
Why can they no longer leave the Isle of Colde?
Ok, but realistically, Phinny would lecture a desperate and ādrastic times call for drastic measures!ā Lou into giving up. He would put him in his place. The only thing keeping canon Lou from tipping over the edge is the fact that he has people to reel him back into thinking āwait thatās really creepy!ā
That being said he can, could, and would absolutely kill for his love. He canonically⦠basically has. And itās half implied that Vanum DID!
His jealous expressions can scare anyone into backing off, so just try to fight him for his love! Youāll lose! Badly!
Also Aquia! Iād probably give him a 2/10. I could see it, but it wouldnāt be particularly bad.
Aquia is a soft yandere who also would recognize his feelings arenāt normal and try to do things a more normal way. He wouldnāt give up and his possessiveness would slip out whenever he gets desperate.
Heād likely also endear his love into liking him. With little other magic at his disposal, thereās nothing else he can do. Heād ask Jasper and some others for help winning their heart.
He might consider trying to hold them captive like Guy would, but heād probably feel guilty. Instead heād encourage them to stay at his side, where theyāre never out of arms reach, and ask people to not allow them to leave the Avarian castle or his estate, or certain other places without him with them.
But why would they want to do that anyway?