"I keep having dreams where my wife is being held by another man..." Satoshi, a husband suffering from erectile dysfunction, was plagued by a complex over his inability to satisfy his wife, Nao. This led him to harbor a strange idea... One day, Satoshi brings his subordinate, Kasai, to their home. Nao is initially drawn to Kasai's seemingly innocent personality, but in reality, the promiscuous Kasai aggressively makes his move on her... While tormented by guilt toward her husband, Nao pretends to be calm, but Satoshi, who knows everything, feels an indescribable frustration and an arousal in his crotch...