Dumbbell Nan Kilo Moteru?

Dumbbell Nan Kilo Moteru? centers on Hibiki Sakura, a gluttonous high school student whose love of food starts to show in her waistline. After a regular after-school grub crawl, her best friend Ayaka Uehara calls her out, and Hibiki's attempts to exercise on her own go nowhere. Looking for a fresh start, she decides to join the newly opened Silverman Gym. What she expects to be a simple fitness club quickly turns into something far stranger. At her orientation, Hibiki finds herself surrounded by world-renowned bodybuilders and athletes, and the atmosphere only gets more surreal when she meets Akemi Souryuuin, the student council president and school idol, who turns out to be a total muscle fetishist. Grossed out by the scene in front of her, Hibiki tries to leave, but trainer Naruzou Machio stops her in her tracks. Completely enthralled with her newfound Prince Charming, Machio, Hibiki signs up as a gym member on the spot. From that impulsive decision onward, the series follows Hibiki as she adapts to a new lifestyle built around training, discipline, and the eccentric world of Silverman Gym, turning her struggle for fitness into a comedy of muscles, motivation, and awkward enthusiasm.