Four-eyed tsundere Takahashi Kyouya returns to his hometown after several years of absence, to find his childhood friend, Hino Motoharu, waiting for him. Oblivious to Kyouya's feelings towards him, Motoharu is more than happy to have Kyouya back. However, love that sparkles in the boiling hot night in the midst of the Karatsu Kunchi festival doesn't seem to stop flowing.