The reason behind their quarrel is trivial, for sure

Cut it out, Christa.

Just because you're cute doesn't mean that everything has to go your way.

I've never thought that way!

Why do you have to be so mean, Ymir?!

Hah...

...Everyone likes to tease cute children, right?

Don't get carried away or you'll attract everyone's attention.

Ymir, you're nothing but talk...!