With her husband about to leave for an overseas assignment, Haruka Aso arrives at her in-laws' house, where her father-in-law, Tohru, lives alone. Having recently discovered her husband's infidelity, she's lost all trust in men—except for her father-in-law, who has always been different. She loves him not just as a family member, but as a man. With only one week left to spend together, Haruka straddles the sleeping Tohru and gently presses her lips against his. Rubbing herself against his body, she boldly reveals the secret longing and desire she's kept hidden for so long. In this moment, the bond between them feels deeper and more genuine than ever before.