Character

Ozen "The Immovable"

オーゼン

Ozen is one of the legendary white whistle delvers who have traversed most of the six known layers of the Abyss. Her great height, superhuman strength, speed, and complete control over her expressions all make her an imposing figure. Little is known about her as she rarely explains herself, and when she does it can be hard to tell whether she is telling the truth, but she is known to have received her ox shaped white whistle more than 50 years before Riko ventures into the Abyss, and that her hair is shaped to conceal scarring from the loss of sanity in the lower levels of the Abyss.