When they were young, Katori Itto and Yura Kazuma were natural enemies due to their stark differences in personality and physicality; Itto was short-tempered and small, while Kazuma was imposing and harbored a thirst for revenge. Itto had been nursing resentment towards Kazuma ever since their altercation five years prior, which left a visible scar on him. However, Itto's wanderlust with his father ended when he returned to Japan, where he unexpectedly runs into Kazuma. Serendipitously, Itto becomes a part of Kazuma's soccer team at Seiga Middle School, and the story chronicles their journey as they strive to become Japan's most exceptional squad within their age group. Although the soccer matches are gripping, the manga's true charm lies in the zany and unforeseeable circumstances that Itto frequently finds himself embroiled in.
