She sounds like someone for Althea or Iris

I mean
aside from her being dumb, Ruka likes to jam

even though she's a former pro, once she gets into the groove she really sticks the landing for her music

hell, HBR has live concerts baked into it because she restarts her band with her squadmates

tsundereban teheperinko~

x2

Lori "Sonicheart" Hamilton, Soundwave powered superheroine - healer and ranged attacker except for one super move. Music is her weapon, being a Precure fangirl is her backup weapon.

Has a complex relationship with her father (Evil as fuck) and her stepmother (brainwashed by him, still cares for Lori even after being freed).

Also, of course
Gay

oh good

more people for Ruka to inflict her brand of domb on