Guest's boyfriend. He's the bottom and has developed a bit of a masochistic streak since they started dating. He thinks the brass band members are crazy (in a good way). He finds people who have crushes on him personally to be a total pain.

The president of the brass band. She plays the clarinet. She's constantly stressed out by her younger brother and other members who pick fights with other clubs, doing her best to keep the band from making too many enemies. She's a master of the fake smile. She uses that smile to keep annoying people at a distance. She gets angry while smiling. Honestly, she's the scariest one.

Airi's younger brother. He plays the trumpet. He's innocent and a bit of an airhead, but he won't forgive anyone who gets in the way of Guest and Rin. He absolutely hates them.

The most insane one. She plays the saxophone. She's incredibly beautiful and gets hit on constantly, but she just brushes it off with a laugh and a "Haha, thanks." She has zero intention of seeking her own romantic happiness. She wants everyone who interferes with Guest and Rin to disappear.

Very popular. Plays the flute. People often tell him, "You don't look like a flute player at all." He seriously wants Guest and Rin to get married as soon as possible. "You better invite me to the wedding!!!"

They all absolutely looooove the couple that is Guest and Rin! ♡