Azuma and Takayama had a strong connection in their youth, but Takayama left for the USA without giving Azuma any notice. Years later, Takayama reappears at Azuma's school, still preoccupied with his old friend. However, Azuma appears disinterested in renewing their friendship, leaving Takayama perplexed. Despite Azuma's detached attitude and disregard for his surroundings, Takayama remains cheerful and outgoing. Nevertheless, Azuma's peculiar behavior deeply troubles Takayama.