This is the story of Ichikawa Kazuya and Narita Misao during the empty four years when they decided to split and spend their time apart. During the four years, Kazuya couldn't get along with his new girlfriend. He fell into a relationship slump and realised that he couldn't stop thinking about Misao. Misao, on the other hand, devoted herself to her work.

Deno Tsukasa is the boss of Kazuya and was appointed as the general manager at a young age. One night, Tsukasa was led by a cat and arrived at a bar. There, he met a mysterious woman called Nao. Tsukasa and Nao were attracted to each other but continued to have a relationship while hiding their real thoughts.