"Yamada-kun to 7-nin no Majo" is a Japanese manga series written and illustrated by Miki Yoshikawa. The story follows Ryu Yamada, a high school student who discovers he can switch bodies with others through a kiss. This ability leads him to uncover the secrets of his classmates and the mysterious Seven Witches of his school. The series combines elements of romance, comedy, and supernatural themes. As Yamada navigates his new powers, he forms a close bond with Urara Shiraishi, a top student who becomes his partner in solving the mysteries surrounding the witches and their unique abilities.