Atsushi is taken to his mother's favorite coffee shop, where he meets his mother's friend Nao. Atsushi, who is at the mercy of her unadorned and free-spirited charm, finds out that she is her married woman, and once suppresses her feelings... Unable to suppress her rising emotions, he tells her of her feelings. Nao refuses, but she gets carried away by his momentum and ends up having a relationship with her. Since then, the two have secretly piled up their bodies and love each other. After a while, Atsushi, who has a gap in her relationship with Nao, heads to her shop again.

엄마가 자주 가는 카페의 주인인 나오 씨..처음 봤을 때부터 반해버렸지만 그녀는 유부녀였다. 하지만 어느 날, 술에 취한 나오 씨를 데려다 주던 중 불현듯 내게 뽀뽀를 하고 헤어지는데.. 그 순간을 잊지 못해 다시 나오 씨의 가게에 찾아가게 되는데..