Needless Valkyrie Drive: Mermaid

Cruz Schild was living a normal life with his big sister Aruka, his childhood friend and soon-to-be girlfriend Mamori, enjoying life. Until they were taken away to an island for those with strange powers like the A-Virus and Fragments as they meet a new friend and they'll face some tough challenges, including Cruz being surround by women and girls on the island. Harem. Lemon. Milf.