Kido Yuusuke has decided to steer clear of emotional entanglements in his romantic endeavors following his split. He engages in a casual relationship with accountant Kamiyama Kouki for the sheer pleasure of it, with no strings attached. Kouki abides by Yuusuke's wishes and keeps his distance, providing Yuusuke with the noncommittal companionship he seeks. But once Yuusuke witnesses Kouki's attentive conduct, he begins to crave more than just casual flings with him.