Topaz Gym

Topaz Gym is a health club in School District 14, Academy City.

Principles
Topaz Gym is a multistory health club in School District 14. A boxing room and shower room is shown in the anime. It is located behind of Secret Garden Mimosa.

Necromancer Arc
In the past, Hishigata Hirumi exercised in the boxing room to improve her weak physical strength due to her disease.