'Mina', a fan of a dying idol group, and 'Ryeonha', who has no interest in idols at all. Despite their opposite tendencies, the two are the only friends in the world and have the best of both worlds. However, while at an autograph session, Mina falls into a coma due to an unfortunate accident. She finds her friend Ryeonha resenting her favorite mandol group center, "Douie". On the other hand, Douie, whose group is in danger of being disbanded, tries to prevent the group from being disbanded, but it is not enough. An inexplicable, supernatural phenomenon occurs to three people in such a crisis! Will the three of them be able to stand up against adversity?