An inconspicuous bet forces Seiji to move in with his band colleague Yosuke for 7 days. The winner takes on himself to savor his triumph to the fullest - on the first evening the humiliations and taunts begin, to which, contrary to expectations, Seiji does not surrender without resistance. Driven by his desire to exercise power over Seiji, Yosuke does not notice how the situation is slowly getting out of hand ...