Shuu, a company worker who does not have any desire for love or dating, spends his days detached with more time and money than he really needs. One day, he encounters Mia in a kerfuffle over some monetary troubles, and nonchalantly decides to help her out for no reason in particular. He then ends up having to carry her home and take care of her after she collapses unconscious. As thanks for his kindness Mia tries to repay him with her body, but naturally Shuu refuses. Intrigued by his lack of desire, Mia makes a proposal to him...