[Machine Translation] A mysterious man, Rei Kano. Although she has never met him before, the feel of his hand on her skin is somehow nostalgic... Miya Takahashi, a college student, has been avoiding relationships with people her whole life. One day, Miya is invited to a party by a man who calls himself Rei Kano. Rei is a man who is rumored to be holding shady parties in the underground tunnels of the university. Miya's father, a police officer, asks her to investigate the rumors about the underground tunnels. But as Miya investigates the secret, she ends up having sex with Reiji...