Kirara Asuka, who was the target of her teacher, is a professional filthy girl who is completely different from an amateur. Even if I ask the passengers around me for help, I'm actually a filthy person. Fear eventually turned into pleasure, and after the tide was blown, I couldn't even stand and had to endure the shame while shaking my knees ... A radical drama that unfolds on the bus, in a manga coffee shop, and on the train!