Akarin runs a small restaurant with her husband Hiro. One day, Hiro gets injured and has trouble walking, making it difficult to manage the shop. She reluctantly asks Sawa, Hiro's longtime friend, to help out, but Akari feels conflicted inside—she once had a romantic relationship with Sawa. Trying to stay composed, she keeps her distance from him. However, Sawa still harbors strong feelings for Akari, his best friend's wife, feelings that begin to stir emotions deep within her.