Machida-kun no Sekai
is a Japanese manga series written and illustrated by Yuki Andō. It was serialized in Shueisha's Bessatsu Margaret from 2015 to 2018. The manga received a live-action film adaptation directed by Yuya Ishii that was released on June 7, 2019, as Almost a Miracle. A stage musical adaptation ran from March 29 to April 14, 2024, at the Hibiya Theatre Creation in Tokyo.
The manga won Andō the New Face Award at the 19th Japan Media Arts Festival Awards in 2015. In 2016, it was nominated for the 9th Manga Taishō and won the New Creator Prize at the 20th Tezuka Osamu Cultural Prize. The manga ranked third place in the 2016 Kono Manga ga Sugoi! guide's list of manga for female readers.