"What?! That Annoying Handsome Guy Was a Woman!?" A Pure, Heart-Throbbing Love Story of Misunderstanding, Featuring a Muscle-Brained Guy and a Flat-Chested Girl!

What!? That annoying pretty boy was actually a girl!? Souji, who takes pride in his impressive chest muscles, has an enemy at his gym: the instructor Momose, who always surrounds himself with cute girls and criticizes Souji's workouts. Determined to find Momose's weakness, Souji is shocked when Momose attacks him in the shower one day. Confused by his own unexpected arousal, Souji discovers that Momose doesn't have the equipment he expected. A love story full of unpredictable body language between a muscle-proud but unfortunate guy and a petite girl who falls in love impulsively!