Amakasu Soichirou

"Red Alert. It's a warning bell that Humanities Enemy, the Night Flyer Notes are attacking."

The protagonist's assistant, he supports her. An excellent person who also boards the VOX and helps out in battle situations.
He's responsible for maintaining the Substances and is on good terms with them.
He's quite the music maniac so is very critical of the teams band 'Odd-I's', but he's the only one that appreciates Kazuki's talent.
He's proud of his large record collection.