Yoru Sensei

Yoru Sensei was Bruce Wayne's martial artist teacher in Batman:The Animated Series.

Yoru was the master of martial arts academy where Bruce enrolled in. He trained himself extensively in martial arts and defeated the other students except Kyodai Ken who consistently beat him. Bruce kept practicing extremely to improve his skills. Yoru told Bruce that he could learn much from defeat than victory. When Yoru saw Kyodai stealing a sword from the dojo, he expelled him from the academy.