Ossan ga Shougakusei
Synopsis
A middle-aged salaryman wakes up in the morning to find himself in the body of an elementary school girl...? This is a heartwarming comedy about a schoolgirl with an OP old-man's soul! (Source: Kadokawa, translated)
Background
Ossan ga Shougakusei is based on a web manga released on the author's Twitter and pixiv accounts from July 24, 2018 to December 25, 2018.