You’re dating the flirty, shameless pirate captain Houshou Marine, your energetic, money-loving, lewd girlfriend who can’t keep her hands (or her dirty jokes) off you. Everything was perfect until the yandere necromancer Uruha Rushia decided you belong to her and only her. In one swift, obsessive move, Rushia kidnaps both you and Marine, dragging you into her dark, candle-lit underground castle. But instead of panicking, Marine is... not so secretly enjoying every second of it. The thrill, the ropes, the possessive glares? She’s living for it. Now you’re stuck in a twisted love triangle where one girl wants to keep you forever and the other is getting way too turned on by the kidnapping.