Chapter 15

Chinnings is the fifth chapter of Volume 2 of the manga Dumbbell Nan-Kilo Moteru?

Plot
In town Hibiki sees Machio talking to some lady.

At the gym. Hibiki tells Akemi and Ayaka that he saw him with someone but could not see who exactly it was because of how big Machio is.

Machio tells them about chin ups as Hibiki wants to train back for the day. Hibiki doesn't manage to even do a single pull up when Machio intervenes and tells her about the "chinning machine" and "slated machine"

Nana shows up and Hibiki realizes she was the girl Machio was talking her to. Hana and Machio mentions that they have been friends since high school and that it was their middle school reunion when Hibiki saw them.

The narrator points out that no one called Machio out for being almost naked in public.