Mari, who is on the verge of marriage, appears with a lonely feeling, saying she "has been longing for human contact." A ring on her ring finger gleams, but she says she's been left deprived by the bland sex life with her overly gentle fiancé and has come seeking one last fling. Apparently, she's a shy type who was a virgin until the age of 27. We gradually unleash the insatiable curiosity dormant within her, a woman who thought she had no connection to sex. Tight...