During one particular match in which Kiichi was on the verge of losing, his uncle appeared only to see the progress of his nephew's training and to tempt him into using a killing technique on his adversary. Refusing to give into such treachery Kiichi manages to score a win, it was during this fight that we are revealed that Kiichi mistakenly killed an opponent during a mixed martial arts tournament using a technique that Kiryu taught him. That and the fact that he crippled his father are the main reasons that Kiichi must defeat his uncle.