Mei is betrayed by her husband due to her un-domestic personality. When she confides in her father-in-law, he proposes special training to make her more feminine. However, this training turns out to be extremely abusive sexual harassment. While telling her, "You must be considerate of your partner," the father-in-law demands lewd tongue kisses and full-body licking, ultimately seducing Mei into a physical relationship. As a result, she becomes mentally and physically overwhelmed, drawn into even deeper emotional turmoil.