The Formula of a Goal Mikage explains that he got interested in soccer when watching the World Cup, but with his father wanting him to succeed him as the CEO of his family's company that he did not approve of his soccer dream. One day, Mikage encountered Nagi and they have since become teammates. As Team Z prepares for their final match against Team V, which they must win to advance, Ego explains to Team Z that the goals they scored are not reproduceable and that reproducibility is a critical skill for a striker. With that message, Isagi asks Barou for advice on reproducibility, and after seeing him score twice on him in practice, he figures out his mechanics that leads him to mastering the art of reproducing goals...