Hinata is who??? Hinata as Emma

(Cover art is not mine, credits to the artist)
(This is my first story so don't judge me too hard)

Everyone at Karasuno believes that Hinata Shoyo is a happy boy because he is always happy (except when they lose their match.)
But the reality is different.What if Hinata just showed them a facade?Hinata or should I say Emma is traumatized by everything that happened in the Demon world.
He is determined to never tell his team about his past because he doesn't want their pity. What will happen if his team finds out the truth?

Hinata isn't trans ,the price of the promise was that he will be a boy till his bio 18. Birthday (yes I changed the promise because I didn't want Hinata/Emma to forget his family,The 18. Birthday price isn't my idea ,I got it from a Haikyuu x Tpn fanfic) he changed his birth year so he should actually be in the 3 year of middle school when he got into Karasuno. Oh yeah he is just pretending to be dumb, he's got Emma's IQ.

This is a Kagehina , because in my opinion I think this ship is pretty cute(if you prefer an other ship I totally respect that)