Midori no Hibi is a Japanese manga series written and illustrated by Kazurou Inoue. It follows the story of Seiji Sawamura, a high school student known for his tough demeanor and fighting skills. One day, he wakes up to find that his right hand has transformed into a girl named Midori Kasugano, who has a crush on him. This unexpected change leads to various comedic and romantic situations as they navigate their new relationship. The series explores themes of love, friendship, and personal growth. It combines elements of romance and comedy, appealing to fans of both genres. Midori no Hibi was serialized in Shogakukan's Weekly Young Sunday and later in Weekly Young Jump, gaining popularity and leading to an anime adaptation.