Ten years have passed since the beginning of the novel, and we're told that Yudai is about to fight an exchange student from Canada named Kate. Kate is described as "at least 170cm tall and over75kg , right" , and she's got "skills too" . We learn that Kate is a member of the wrestling team of Ogawa Sawara, and that her opponent is a black belt in jiu-jitsu, which is a kind of mixed martial arts that involves wrestling, boxing, and other forms of fighting. Kate's opponent, according to the rumors, is a wrestler named Kate Rampling, who's from Canada. Kate and Yudai go at it for a bit, and Kate loses.