That's only the after party though, Zombehs. Making a concert happen requires a lot of hands. Hardwork, mang. XD

But hm...so a cook-for-hire? In a school where you can buy ready-to-made food?

Here's what the relationships look like so far though.

Cath and Katsuo live in a treehouse together, as payment for Cath giving Ashita singing lessons.

Ashita also gets acrobatics training from Keepa, in exchange for being able to molest her.

Keepa and Zombehs are study buddies, with occasional cooking lessons together?