The Togame brothers, Hideyuki and Hideomi, abide by a familial decree that is theirs alone: when sorrowful, a kiss; when joyful, an embrace; and in lonesome moments, they share their bodily warmth. Following an unfortunate incident that resulted in Hideyuki's anterograde amnesia, he and Hideomi have been living together in solitude, much to their parents' dismay, who had big hopes for Hideyuki's future. Over time, however, Hideomy has become Hideyuki's caretaker, leading to a relationship that seems more romantic than fraternal. What kind of future lies ahead for these unusual siblings?