Nijuuri Kai

Japanese name:	二十里海
Nickname:	Twenty

Kai Nijuuri is a crafty magician who uses various English words and attacks using cards. He is wildly perverted and constantly shows off his erect nipples to the chagrin of the students. His Toys allows him to disguise himself perfectly. Undercover as a teacher. His name is based after Edogawa Rampo's Fiend of Twenty Faces.

Voiced by: Daisuke Kishio

Wikipedia