Dumbbell Nan-Kilo Moteru?

Hibiki Sakura’s love for food is starting to affect her size. In effort to slim down, she scopes out her local gym only to discover two problems—it’s a haven for intimidating body builders, and her classmate Akemi has a weirdly aggressive muscle obsession. After meeting her handsome personal trainer, Machio, Hibiki bites the bullet and starts her quest for a hot bod! (Source: Funimation