Towa ni Nemure永遠に眠れ ; Eien ni Nemure ; Eternal Sleep ; The lover that won't return

From Operation Boredom: Jin, son of a Count, has a dark past that follows him everywhere. Now a pirate, he's recently acquired a new set of slaves to sell. However, one of them, Lisa, sparks something inside Jin. Could she be the one to get through his cold, ruthless, and dark heart and see what's really inside him?