In this short scene, Hirokazu and his friend Proteus discuss the "Japanese tradi tion" , a Japanese custom that involves kissing. The two men discuss whether or not they should follow this custom, and . . they decide to do so, but they are interrupted by the arrival of a "prom pinky ise" . While they are doing so, they sing an oath, which is a pledge of allegiance to one another. The men agree that they will always follow this tradition, even if they break it