This list contains my favorites with dark or weird plots like:
Abusive partner ♡
Family affair ♡
Incest ♡
Unhealthy Relationship ♡
Possessive Partner ♡
Suicide ♡
Suicide attempt ♡
Self Harm ♡
Drug Use ♡
how many layers of irony are you on?
※ This list is full, I can't update it anymore.
Since the search never ends, see you in the second part
Link for the second part: ↓
https://www.mangago.me/home/mangalist/2037424/ 
