How Heavy Are the Dumbbells You Lift?

Hibiki Sakura loves after-school food runs, but a comment from her best friend Ayaka Uehara about her steadily growing waistline pushes her to finally try getting in shape. After her solo workout attempts go nowhere, she signs up for the newly opened Silverman Gym—only to bump into Akemi Souryuuin, the student council president and admired school idol, during her first visit.

Silverman Gym turns out to be far more intense than Hibiki expected, packed with renowned bodybuilders and athletes, and Akemi reveals an unabashed fascination with muscles that catches Hibiki off guard. Ready to bolt, Hibiki is instead stopped by trainer Naruzou Machio; charmed on the spot, she commits to membership and starts adjusting to a new routine she never planned on taking so seriously.