Flesh & Divinity 

This one leans hard into captivity and abduction — Cinder is knocked unconscious and wakes up trapped on a lawless island, collared, and claimed by three masked men who make clear she owes them everything. Expect dub-con framing throughout (she resists at first, then leans into it), plus strong power-dynamic and toxic-relationship undertones as the men use control and coercion to get what they want, with a slow Stockholm-syndrome-adjacent tip from hate to want. There's a backstory of step-family mistreatment and emotional/physical neglect from her stepmother and stepsisters before she ever reaches the island. Reviewers don't flag this as gory or gratuitously violent — it reads as fast, filthy fun rather than trauma-heavy, so if dub-con and captivity dynamics are within your comfort zone, you're good to dive in.