Beat is a boy who aspires to become the best fighter in the world. However, he does not have the necessary skills to be so. Being the worst student, he has little self-confidence. However, everything changes when his teacher Shida Yamagawa chooses him as his student. for the promotion tournament, and on his first day of training, when he is thrown against a kraken in the middle of the sea, he ACTIVATES AN INCREDIBLE POWER!!, this is Beat's story of winning the long-awaited Promotion Tournament.