Dark

Former demon lord loses all of his power and becomes a breeder for his former underlings
-Mpreg
-Breeding
-Noncon
-Harem

Mc is kidnapped and raped until he develops Stockholm syndrome
-Stockholm syndrome
-Rape
-Kidnapping
-Brainwashing
-Mind break

Younger brother is completely obsessed with his older sibling, who uses his little brothers obsession to his advantage.
-Incest
-Obsessive lover
-Manipulation

Boy confesses to his cruel friend who blackmails and manipulates him
-Rape
-Blackmail
-Sadism
-Homophobic slurs
-Underlying master-slave dynamics

Guy gets abducted by his former classmate who he can’t seem to remember
-Kidnapping
-Rape

A solder is captured by his enemy and sexually tortured
-Rape
-Military
-Sadistic

Man hypnotized his mean older brother into becoming his sex slave
-Noncon
-Brainwashing
-Sadisti
-Incest

A serial killer who used to live at a church run orphanage is obsessed with a morally corrupt priest
-Murder
-Child abuse
-Pedophilia
-Rape
-Psychopath

A models ex boyfriend and stalker are in a vicious competition to get her back no matter the cost, no matter how twisted. The main character actually has a spine and fights for herself.
-Straight
-Fighting
-Stalking
-Yandere
-Obsessive/Possessive lovers
-Love Triangle

The MC’s former sugar daddy becomes his stepfather and tries to blackmail him
-Blackmail
-Manipulation
-Murder
-Sorta Incest