Season 1

Sakurai Shota, the strict and seemingly ordinary accountant at a company, clashes with popular salesman Ogawa Yuki over a rejected expense claim. Outside of work, however, both lead secret lives. After a chance encounter reveals that they are neighbors and exposes each other's hidden identities, the two agree to keep each other's secrets. As their unusual bond deepens, Ogawa begins to see Sakurai in a completely different light.

As Ogawa and Sakurai grow closer through their shared secrets, their relationship begins to take on a more personal tone. A misunderstanding involving a visitor to Ogawa’s apartment sparks unexpected jealousy from Sakurai, revealing feelings he can no longer ignore.