Hitoriga

From OLSEncyclopedia

Hitoriga is an assassin much like Suzuka, not much is known except for the fact that he is the one who killed Suzuka's family. A sword fighter himself, in his first battle with Suzuka (which he won, making him the only person who ever defeated her in a swordfight) he changed his face and body to look like Suzuka. He did that because he was in love with her and wanted to see her face since he knew he could never have her. He was defeated by Suzuka's Crimson technque, a sword technique she devised specifically to kill him.