A Chinese Taoist monk, He Xun, has his soul reincarnated into the body of a Japanese high school boy. He Xun, now Tanaka Mamori, uses his cultivation powers to ward off demons.

Among his encounters, a Demon Fox known as Miyazaki Peach, suffers a humiliating defeat at his hand. Determined to get back at him, Miyazaki transforms into a school girl, and attends classes with Tanaka in an attempt to seduce him.