Daisuke is a security guard of a building. One day, when he is patrolling around at night, he finds Tokiko masturbating on the desk. Tokiko says, "Please keep it secret. I'll do whatever you want...." Daisuke says, "If you want to keep it secret...." He tries to have sex with Tokiko, but she suddenly runs away. On the next day, Tokiko says to him, "If you don't wanna get arrested, follow my order." Daisuke just says, "Well, I see...." He has no choice.... Like this, he gets involved in a mess full of erotic happenings....