After almost a year of his ex-boyfriend walking out on him, Hisashi is still trying to move on. Single and lonely, he decides to pour his energy to work, where he meets his senior, Yukio Koda, whose charming personality had Hisashi developing a crush. The two of them make a pair in the office as the duo of luck where coincidentally, good luck came to people who come in contact with them. Unluckily for Koda, he wounds up getting bad luck, much greater this time, when his apartment building burned down. Concerned for his senior, Hisashi offers Koda to stay with him. The two start living together, and Hisashi finds that his crush quickly turns into love.