After three years of marriage, a husband takes his homemaker wife Kana on a hot-spring trip—but relaxation is only a pretext for fulfilling his growing cuckold fantasy. Their couple's social-media account has filled with obscene comments, and knowing that strangers lust after Kana excites him beyond control. Eventually he wants to see her taken by other men before his eyes, so he gives her nothing but a towel and sends her into a men's bath crowded with eager perverts...