The only younger brother of Shisui Uchiha, he watched his elder brother be driven to take his own life and his clansmen slaughtered by their own kin.
The entire Uchiha clan was branded as traitors and made a sacrifice to Konoha's consolidation of power.
What is the Will of Fire? Nothing but a hypocritical cloak covering betrayal and murder!
Uchiha Jin, who had lost everything, saw his faith crumble completely.
There was no warmth left in the young man's heart, only an overwhelming hatred that would burn everything to ash.
He lay low in the shinobi world, advancing step by step, vowing to settle accounts with every enemy in Konoha, preserve the Uchiha bloodline, and restore the fallen Uchiha to greatness.
The protagonist is too childish. Although he is indeed a child, at least he has past life memories. Why don't you write his mind as a child?
You can always use Konoha to gain experience, and you can always travel through the Uchiha clan.