Read manga: Hero Hearts

manga
Other name: ヒーローハーツ
Status: ongoing
Updated at: Aug 25, 2019
Summary:

Amamiya is a pure-hearted high school student who loves girls who play sports. One day, a strange monster attacks his school. Amamiya is saved by a mysterious person claiming to be a "Hero of Justice"... Now they have to search for the "Hero Parts" that have been scattered all over the world!