With yandere and very possessive seme who treats uke very good, cherish him, and is not abusive but is possessive and yandere.
I want manga if possible, not manhwa.
If you read novels
Then legendary master's wife, the ml is not yandere but some aspects are there.
Spring trees and sunset clouds (it's confusing at first if ml is yandere or not but when you get to know it it's very good)
I really love the healing paradox
Even better if the mc is depressed and alphabetic because of past mistakes which actually affects his mental health, while the ml start as curiosity since the mc is genius too but fall in love in process, please no rape or too much smut
The Promise
Red Candy
Big Apple
Hope these works
But is real deranged and possessive about the uke, and like reveal his real persona sometimes, even better if he really treasure the uke, and the uke likes him back and is not fragile
https://www.mangago.me/read-manga/eighteen_s_bed/ ok let this marinate tho cus ml is crazy
https://www.mangago.me/read-manga/antidote_harusari/ he isnt rly a red flag or crazy but he gets super protective abt the mc
https://www.mangago.me/read-manga/room_for_renewal/
https://www.mangago.me/read-manga/hwang_young_s_misery/
Like, I want a real yandere seme with all dangerous and even better if he locks up the uke, but I don’t want any rape
https://www.mangago.me/read-manga/shock_a_bye_baby_novel/
I can’t remember if there is rape in it but i remember it being funny
But more intense Where the uke act like housewife and is kinda confined to home until the end and the seme is possessive
Who actually snaps and turn into beast
Even better if he snaps and is somewhat yandere
Like the uke is the one overprotective like seme, grab chin and manhandles seme, is genuinely scary to anything that is a threat to seme. while the seme is soft.
Kinda like hellfire song but less about sex but more like obsessed with the uke. Even better if the seme claims disgust while doing yandere stuff to keep the uke.
Like he ragebait top and is playful fearless but have very scary yandere top