Kataoka, a buff young man dedicated to daily conversations with his muscles, has a crush on a staff member at his favorite gym. Her name is Shiina—and what caught his eye wasn't her smile or her athleticism… it was her soft, curvy belly!? Despite being a gym staffer, Shiina is delightfully plump, and that's exactly what musclehead Kataoka is obsessed with. A love comedy overflowing with fetish energy, muscle passion, and pure affection for softness, begins now!