
Yuujirou Kai (甲斐裕次郎) is a supporting character in Tennis no Ouji-sama: Zenkoku Taikai-hen Final, voiced in Japanese by Daisuke Nakamura. The series' music includes "Tennis no Ouji sama Zenkoku Taikai Hen Final SP03 Zenkoku Taikai Final Round Prologue PV", "Prince of Tennis Zenkoku Taikai Hen Ed 04".