Josou Danshi Mii-chan to Sono Kareshi? Kei-kun

Keiichi was living a calm life at an all-boys school. One day he’s confessed to by his classmate and best friend Sonota Minami. Confused Keiichi fled from this sudden confession… But… The next day Minami appears before him transformed (dressed as a girl) and declares war..!! What will happen in the future of Keiichi’s peaceful high school life…?