A futa villain turns a male hero into a woman, and then brainwashes and fucks her.
Male to Female Transformation Hypnosis Hentai Futa Manga: Hero TS Kako Kaihen ~Anata wa Zako Sentouin no Ko Datta yo ne~ / The hero got his past rewritten and turned into a woman! ~You’re my low level combatant’s daughter, aren’t you? by Hiiragi Popura and Kikomuhito of the Amuai Okashi Seisakusho group.