Manyokko ☆ Minorin ~Boku(♂) ga Mahou Shoujo!?~

まにょっこ☆みのりん～僕（♂）が魔法少女!?～

2011 Main Game Released

Summary:

Minori is walking home one day when he's assaulted by a strange man. Suddenly a magical talking frog appears and gives Minori the power to fight him! Turns out the man is actually a Geist, a soul escaped from heaven who seeks energy through sex. And so Minori makes a contract to become a magical girl and fight these spirits...