Hidenīro (ヒデニーロ) is a member of the band Spectrenotes and the band's bassist.
He worries about his beard being thin, so he diligently applies hair restoration tonic. Other than his beard, the rest of his hair is very thick and smooth. He likes whiskey, but doesn't like exercise. However, he can outrun any one with his special running method...
- He is based on Hideto Yasui, the bassist of BIGMAMA.
- In particular, he likes whiskey with fruit and chocolate. He also likes shōchū with fried tofu.
- He dislikes ball games.