While waiting for Ritsuka, Soubi unexpectedly meets a new Zero team: Koya and Yamato. He decides to take on this team by himself, but the battle is grueling and the new team leaves him badly wounded. A concerned Ritsuka asks Natsuo and Yoji to teach him about the relationship between a Fighter Unit and the Sacrifice. Later, Koya and Yamato battle Soubi a second time--but this time in a two-on-two with Ritsuka as Soubi's partner...