Three years have passed since she got married, and Riko, whose relationship with her husband Kota has cooled down, is raped by Kota's best friend Kenichi, who has been thinking about her for a long time. Riko, who remembers the loneliness of her daily life, accepts Kenichi's actions. The relationship between the two will deepen and they will meet each other. Riko's body awakens to the end of affair.