Chopper Rikishi

An aggressive and egotistical troll who appeared in chapter 11 of the first serialization. A member of Yokai Academy's wrestling team and one of the strongest monsters on campus, he wanted to test Tsukune's vampire powers after hearing the rumor that he deafeated Kuyo with them, and briefly held Moka hostage in an attempt to force him to use them. He was swiftly defeated by Tsukune's vampire form via Moka's blood injection. He then learned to fear Tsukune and not to pick on his friends.