Katsuhiko is a white-collar worker and enjoys train molestation every day. One day, when he is on the train, he falls asleep and forgets to get off at his station. "This is the end of the line...." He wakes up and gets off.... There is, however, no wicket. He looks around and finds a gate. When he goes inside, there is a house with a sign "Mahjong Parlor".... As if led by an unknown power, he enters it....

[From ErogeShop]