Read manga: Hatsukoi Body

manga
Genres: Comedy ; Ecchi ; School Life ; Shoujo
Artists: Hagikura Yuuki ; [Add]
Status: ongoing
Latest chapter: Chapter 3
Updated at: Aug 25, 2019
Summary:

From Antisense Scanslations:4th-year Elementary student Kotone is obsessed with the aesthetic appreciation of muscles, and her older neighbor Jouji is her ideal body type. But lately, Jouji has been so down his pectoralis major hasn't even been tense. What's a girl to do?