Vampire yandere seme, chapter 1-3. Contains: Rape (and a lot of it), Stockholm syndrome.
Creepy stalker yandere seme, Hair saloon setting. Very creepy.
A compiliation of Harada's best creepy unhealthy relationship stories, Yandere/stalker seme 2-4. Possessive abusive seme 1. Creepy teacher 3-5
Possessive and obsessive seme, a bit slowburn but still a classic.
Possessive seme 1-4, Possessive/yandere seme 5-7. Contains: Rape, Gore, and generally unhealthy relationships.
Not a yaoi manga, but since it's based on a yaoi visual novel i'm choosing to include it. Not to mention it still has shounen-ai moments in it. One of the guys in it, is a yandere for the main character. No further spoilers than that.
First story only has a abusive yandere seme, uke is not very innocent either. Contains: Rape, Abuse.
Chapter 4 has a stalker, the uke however seems to like the attention from his admire.
A yandere vampire enslaves a young boy who wishes to take revenge. Contains: Rape, Tentacle rape.
Possessive seme wishes to make a white dog god his lover.
Koyoi wa Kimi to Chi no Kisu