Kazuya Tokugawa  

, 徳川カズヤ

He has a similar impact on people like Yukimura, and his tennis skills are comparable to Yips's. In practice, he can easily return five balls at once. He is portrayed as an intimidating figure who belongs to the first court, meaning he is one of the strongest players. Last year, he was defeated by Byoudouin Houou in camp, and now he seeks revenge against him. Tokugawa's focus on rivals was limited until Echizen Ryoma arrived, at which point his tunnel vision shifted towards Byoudouin Houou. Despite being easily defeated by the latter last year during the U-17 Camp, Tokugawa remains determined to best him.