Practitioner of the Shin Yiken. He wears an eye patch over his right eye. As Kaku usually remarks, Tekai has a very strange sense of humor. During their fight against Ryozanpaku Team (Kenichi / Miu), as the stage was switched to a rural place with an old-looking small house, he claims that is his house. After a number of people look confused towards this sentence, Tekai ends the joke with "just kidding". He is the first one on the team to be defeated by Ryouzanpaku (specifically, Miu).