Umori

Umori is the sturdiest of the Amori Brothers and a candidate in the 287th Hunter Examination. His number badge is 199. During the first phase, Satotz's marathon, he and his brothers aid Tonpa in driving off some of the weaker contestants, such as Nicole, showing that they've known Tonpa for some time, and have likely worked together with him before.

During the fourth phase of the exam, Imori stalks and attacks Killua Zoldyck in order to claim his badge. However, Killua easily takes his badge then overpowers and holds Imori hostage to force Amori and Umori to surrender their badges. Killua then throws two of the brother's 3 badges into the woods since he doesn't need them, failing the trio.

While Gon is training on Greed Island, Umori and his brothers attend the 288th Hunter Exam, only to be easily knocked unconscious together with the rest of the candidates in the first phase by Killua. Seeing the tremendous gap in abilities between Killua and themselves, despite the boy being much younger than them, they decide that they will never retake the Hunter Exam again.