Why does everyone always make the Alvarez empire?

Hope you get better

The shirt could also be called a long sleeve shirt right

Good chapter in my opinion.
Since you seem to not like Pitou (I like the fact he/she is playfull during the dialog and other action outside of the fight) you can use either Yoruichi or Soifon as a shadow.

It's an interesting concept, need to see where it's going.
will there be other aura user? other Uziha?

for harem : Nami, Tashigi, oc Mermaid (or Shirahoshi), shadow (if like below)
tail king aura: the shadow should be Neferupito (female cat Mink)

interesting story, it is possible to add monet, rebecca, koala and nami to the harem.

a oc uzumaki uchiha conqueror out fr revenge...ok interesting start I got semi hunter x hunter vibes weirdly when zeon awoke.

Id consider adding bonney she seems to have an equally massive grudge against the celestial dragons.

Good chapter, for the harem I request nami, koala and tashigi, for shadow I’m thinking zeref from fairy tail or Itachi or shadow the hedgehog as mink.