Osamake

, abbreviated as , is a Japanese romantic comedy light novel series written by Shūichi Nimaru and illustrated by Ui Shigure. A manga adaptation with art by Ryō Itō has been serialized in Media Factory's manga magazine Monthly Comic Alive since November 2019. An anime television series adaptation by Doga Kobo aired from April to June 2021.

==Plot== Sueharu Maru is a seventeen-year-old high school boy who has never had a girlfriend. He lives next door to his childhood friend Kuroha Shida, a small and cute Onee-san type of girl with an outgoing character that frequently annoys him. One day, Kuroha confesses to Sueharu, but he immediately rejects her; Sueharu only has eyes for his first love, Shirokusa Kachi, who is a beautiful idol and an award-winning author in school. Shirokusa is indifferent to all boys in school but Sueharu, which makes Sueharu think that he might have a chance. When Sueharu decides to confess his feelings, he is devastated to find out that Shirokusa already has a boyfriend. Kuroha approaches Sueharu, offering to help him get revenge on Shirokusa and her boyfriend. Sueharu initially declines, wanting nothing to do with Kuroha, but eventually agrees to let her help him, thinking he might still have a chance with Shirokusa. However it turns out that Shirokusa also has feelings for Sueharu.