Biba Amatori

Biba (美馬, Biba), also known as the Liberator (解放者, Kaihousha), is the captain of the Hunters and the eldest son of the Shogun.

Appearance
He has long pink hair, and is called "beautiful" by the women in Shitori station. He has the looks of someone who is used to fighting.

Personality
Not much is known about Biba. Mumei believed that the weak die and the strong survive, an extreme view Ikoma suspects is taught to her by Biba. However, if that is the case, it is a mystery why he saved and adopted Mumei when she was a little girl. It is possible that he is making Kabaneris out of the "weak" and using them as personal combat troops. He has a policy of "discarding" or banishing people who are too injured to serve, as Enoku and Mumei notes. Whether this is for their own safety or because of his callousness, we don't know.

Mumei, also known as Right Claw of the Liberator, addresses him as "Brother" (兄様, Ani-sama). She looks up to him to the point of idolatry, frequently quoting him and even talking to him in her sleep.

He appears to be very charismatic, judging by his popularity with the common people and the respect he commands from Mumei, despite the fact that he renamed her "Mumei", which means "Nameless". Even Enoku, known as former Ear of the Liberator, desperately wanted to "continue serving the Young Master away from the frontlines" by acting as a double agent, despite his amputated leg disqualifying him from service.

His goal, to exterminate the Kabane and reclaim the land for the people, is identical to Ikoma's goal in episode 7. Whether Mumei is an influence is unknown.

Plot
Journey to Kongoukaku Arc

Mentioned through the series, he was first seen in a flashback of Mumei in episode 6, where he saves Mumei from being killed by a frightened bushi after her mum is shot.

In episode 7, he lead the Hunters, a group of people who eradicate lands filled with Kabane and reclaim them for people, into Shitori Station. Even though he is the eldest son of the Shogun, it appears that he is an independent force, as he has enemies in the Shogunate intent on bringing him down. Enoku tells Mumei to warn Biba in episode 5, and proclaims his allegiance to Biba.

美馬