Oni

An Oni is an exceptional athlete who has acquired amazing fighting abilities through intensive training and the use of advanced weaponry. His or her most powerful equipment is both a weapon and a musical instrument, whose 'pure' sounds are the only means to purge the evil spirits of the Horrors. Oni follow a one-master-one-apprentice tradition. Upon the retirement of their master, an apprentice will inherit the responsibilities as well as all equipment from his or her predecessor. He or she will often inherit the master's title too, but there are exceptions. When a person transforms into an Oni, he or she can use sound based attacks to destroyed the Horrors. If an Oni fights relying on his or her anger,despair or greed, the forehead emblem will grow over the face. When an Oni becomes evil, the headquarters decide if they should be eliminated. If they decide to eliminate the Oni, they send someone from the head family to carry out the task. The Oni are agents of the organization known as TAKA.