In Neo Tokyo, disillusioned youth form tribes that battle each other in an intense game called Extreme Baseball. One night, two kids – Haru Shirogane and Taiga – meet the strongest XB Player Shun Kamiya. Haru and Taiga join Shun's group, the Minato Tribe, to play this cutthroat game against a mysterious man who has begun taking control of all the tribes. Can they defeat him before it’s too late?

Yui Horieas Haru Shirogane (voice)
Akira Ishidaas Shun Kamiya (voice)
Chiharu Sawashiroas Taiga (voice)
Mai Fuchigamias Saori Arisugawa (voice)
Mutsumi Tamuraas Santarou Mita (voice)
Fukushi Ochiaias Manami Daimon (voice)
Shoya Chibaas Kazuki Aoyama (voice)
Hiroshi Nakaas Tenshin Outori (voice)
Mikako Komatsuas Yuī Kamiki (voice)
Yuichi Nakamuraas Yajirobe Ueno (voice)