Rozen's Fighter is Kuromi as its Sacrifice is Hiiragi Keiichi. He is the same aristocratic boy that he is in Onegai My Melody, but when he crossed over to the world of Loveless, he finds Soubi unforgivable for serving two masters and wants him dead. He thinks Soubi could have done something to prevent Seimei's "death" if Soubi was a better fighter.
