Ranmaru Samejima is a very handsome and legendary school fencing champion whose sports career comes to an abrupt end after he is mistakenly run over by a car intended to kill his boyfriend, Enjoiji, the son of the mafia don in Osaka. Because of Enjoji's unwavering love and encouragement. Ranmaru is able to successfully recover.

After a few years of living and loving together, they happen to learn that Enjoji's half brother, Kei Sagano, is not only living near them but has enrolled in the same college to be closer to Ranmaru his secret love. Kei's presence causes some conflict for the happy couple. After a long talk with Masanori Araki, Kei's substitute father, Kei realizes that he has no chance whatsoever of stealing Ranmaru from Enjoji.