Hinata and Kageyama in another universe i guess

HAHAHAHAHAH

We have a saying for these kinda pairups in Chinese. 没头脑和不开心 It's soooo cute. It means the dumb and the unhappy. But it's not meant so literally. It's like when there's a duo and one of them is always the not-gonna-think-too-much and the other always goes why are you like this what goes through that dumb head