Shuuchi no Jijitsu (Circle)

Initially, she despised the pervert, but gradually... In a crowded commuter train, as shoulders brushed against each other, a female student suddenly became excited. Her breathing grew heavy, and unbelievably, her nipples and clitoris became erect. While she was confused, a man's hand from behind began to caress her buttocks. Though her mind was filled with disgust, her body was aroused, and she decided to endure without making a sound until the next station... However, unable to resist the man's teasing techniques, she began to seek him out herself. This is a completely original grope-themed manga! Main story: 36 pages.