Vivi and the magical island - Vivi raped to death by the devil.

After defeating the chief of harbour. One of Vivi's party member tried to absorb the chief's magic. Which made her go berserk. Vivi tried to stop her, and went inside her memories. Only to be engulfed by darkness. What happened to her body in real world remains a mystery. The last thing we saw was her drowning down a sea of goon/semen.