Five summers ago, during a joyous time, Takuro's elder sibling, Kotaro, who was employed as a high-school tutor, introduced Hiro, one of his pupils, to Takuro's abode. The trio lived together harmoniously until one fateful night when Takuro stumbled upon Kotaro and Hiro's secret love affair. Even though the revelation left Takuro feeling hurt, angry and deceived, he couldn't help but develop a profound affection for Hiro. Unfortunately, their blissful existence was short-lived after Hiro's older brother, Reiichiro, ultimately traced his whereabouts.
