Sasuke

Sasuke is the Rival/ born enemy of Ryuji. He's a lone wolf character, bit self-cantered and defeats anyone who stand in his way. He attends Gedo High School with Eiji "Edge" Yamada, Gan Isurugi and Akira Kazama. They pick Sasuke as Daigo Kazama's replacement. He reminds Akira of her older brother.