Travel through time and become the most useless genin in Konoha, awakening the divine system.
Spend money to become stronger, spend money to become invincible.
No chakra? Spend money to purify.
No bloodline limit? Spend money in exchange.
No fame or status? Spend the money.
Kakuzu became my financial advisor, Uchiha Itachi became my personal guard, and the Third Hokage personally issued me an S-class VIP pass.
In the Fourth Ninja War, I took out trillions of assets and announced to the world:
"I, Huang Renxuan, will cover the funding for this war."
Later, the ninja world stopped fighting.
Because they all changed careers to work for me.
"The Sage of Six Paths created the ninja sect, and I bought the entire ninja world."