A girl with a dick, Sora, is in love with Aya. One day, on the train, Sora pinches Aya's dick in her buttocks and involuntarily ejaculates in her panties. From there, their relationship begins. "Aya" knew that "Sora" liked her. "Aya" smiles devilishly and seduces "Sora". And she, she had sex for the first time that day. However...there is a surprising development...
