Married life with a nervous husband is suffocating. Rana loves her husband, but there is a void in Kokoro. One day, her father-in-law, Tooru, comes to stay the night. Rana, who is generous and kind, can't help but express her loneliness. Then, at night, while Rana is taking a shower, Tooru comes over. Tooru embraces Rana and passionately kisses her under the shower, desiring to have sex with her. In the heat of the bathroom and under her father-in-law's strong arms, Rana's resistance gradually weakens...