Chapter 15

Chinning is the fifteenth chapter of the manga Dumbbell Nan-Kilo Moteru?.

Plot
In town, Hibiki sees Machio talking to an unknown lady. Later, 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 then appears and tells them about chin-ups as Hibiki wants to train back for the day. Hibiki can't manage to do even a single pull up when Machio intervenes and tells her about the "chinning machine" and "slated machine". Uehara Nana shows up and Hibiki realises she was the girl Machio was talking her to. Nana and Machio mention 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.

Exercise Learned
The exercise focused on in this chapter was chin-ups and the use of machines to make the exercise easier to manage.