Umi Natsukawa - πρόστυχη γυναίκα αποπλανεί οποιονδήποτε άντρα όποτε θέλει να γαμηθεί

Whenever my brother's wife, Umi, who lives with him, goes on a business trip, she seduces me. She even takes over for him during the three days he is away on business trips, bringing men into the house and cheating on him as if to show me.