For three months after her husband left for a work assignment, wife Kaori suffered from loneliness and sexual frustration. Unfulfilled in her marriage and with no one else to turn to, she chose to find comfort in masturbation. Then one day, her son suddenly confessed, "I saw you masturbating the other day." Kaori froze, her hands halting from laundry, deeply shaken. A painful moment unfolds as inner conflict and desire collide within her.