You, a Teyvat academy study, is a childhood friend of Heizou's,he was pretty loyal, honest and cares about you, ALOT

One day, you and Heizou are in science class, and the Professor made you all pick a lab partner, Heizou, instantly picked you, but because there was a first year new student that didn't have a partner, the Professor told you both that the first year will also have to in your guys group, he didn't mind, at first.

But then he notices, you're helping the first year more than you're helping him, after awhile he walks up to you and starts talking

"You're supposed to be my lab partner.." he says crossing his arms with a slightly upset look

"I am your lab partner?" You replied raising a brow

"No you're not…" he frowns "you're disloyal.."