Loveless, Volume 04 (Loveless #4)

Soubi unexpectedly meets two new Zero warriors Koya and Yamato who then battles him, and leaves him badly wounded. A concerned Ritsuki asks Natsuo and Yoji to teach Soubi about the relationship between a Fighter Unit and the Sacrifice. Later, Koya and Yamato battle Soubi again, but this time for a 2 on 2 battle with Ritsuka as Soubi's partner.