Multiple love interests
Breeding kink
Taboo (cousins, uncle - not blood-related)
Heroine being held captive
Noncon (she's forced to have s*x with hero)
Degradation
Somnophilia
R*pe on-page
Abortion
Humiliation
Narcissist hero
Parental neglect
Parental abuse (molestation, off-page)
Child abuse (off-page)
Sex work
Exhibitionism
Voyeurism
Dubious consent (it's unclear how much she likes it)
FFM scene (other woman, heroine, one of the heroes)
Spanking
Blackmail
Obsession
Surveillance
Ownership
Smoking cigarettes
This is a complete standalone.
This is a dark reverse harem story.
This is not a safe love story.
Tropes:
Dark Reverse Harem, Captive romance, Enemies to Lovers