| Osamake: Romcom Where The Childhood Friend Won't Lose | |
 First light novel volume cover featuring Sueharu Maru (left) and Kuroha Shida (right) | |
| 幼なじみが絶対に負けないラブコメ (Osananajimi ga Zettai ni Makenai Rabu Kome) | |
|---|---|
| Genre | Romantic comedy[1] |
| Light novel | |
| Written by | Shūichi Nimaru |
| Illustrated by | Ui Shigure |
| Published by | ASCII Media Works |
| Imprint | Dengeki Bunko |
| Demographic | Male |
| Original run | June 8, 2019 – present |
| Volumes | 12 |
| Manga | |
| Written by | Shūichi Nimaru |
| Illustrated by | Ryō Itō |
| Published by | Media Factory |
| Magazine | Monthly Comic Alive |
| Demographic | Seinen |
| Original run | November 27, 2019 – present |
| Volumes | 6 |
| Manga | |
| Osananajimi ga Zettai ni Makenai Rabu Kome: Otonari no Yon-shimai ga Zettai ni Honobono suru Nichijō | |
| Written by | Shūichi Nimaru |
| Illustrated by | Mutsumi Aoki |
| Published by | Media Factory |
| Magazine | Monthly Comic Alive |
| Demographic | Seinen |
| Original run | January 27, 2021 – present |
| Volumes | 3 |
| Anime television series | |
| Directed by | Takashi Naoya |
| Produced by |
|
| Written by | Yoriko Tomita |
| Music by | Akiyoshi Yasuda |
| Studio | Doga Kobo |
| Licensed by | Crunchyroll |
| Original network | AT-X, SUN, Tokyo MX, KBS Kyoto, TV Aichi, BS11 |
| English network | |
| Original run | April 14, 2021 – June 30, 2021 |
| Episodes | 12 |
Osamake: Romcom Where The Childhood Friend Won't Lose (幼なじみが絶対に負けないラブコメ, Osananajimi ga Zettai ni Makenai Rabu Kome, "A Romantic Comedy Where the Childhood Friend Absolutely Will Not Lose"), abbreviated as Osamake (おさまけ), 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 seinen manga magazine Monthly Comic Alive since November 2019. An anime television series adaptation by Doga Kobo aired from April to June 2021.