Masahide Sakuma

The thought that doing things that other people are already doing is dull and boring and is pretty central to his character as a creator.

Then the interview notes, Yonin Bayashi was a famous progressive rock band, known in part due to its leader, Masahide Sakuma.

Then he finishes it up, Kagayama does.

As a bit of an aside, I've actually been asked so many times in foreign interviews what chala, heck chala, means in Japanese.