Reincarnation Of The Businesswoman At School (WN) - Chapter 3054 - Mu Yiyang

A boy from 21st century Earth, met an accident and later was reborn in Naruto’s Ninja World.
He is born in Uchiha Family and becomes the useless brother of Itachi Uchiha and Sasuke Uchiha…. Let’s see how he changed the Naruto world.

- Description from Novelupdates

In his previous life, Lin Mu was the top assassin on Earth. He accidentally traversed to the Eternal Immortal Realm, where, over the span of eight hundred years, he cultivated from an ordinary mortal to the realm of an Immortal Emperor.However, as he was undergoing the tribulation to become an Immortal Emperor, his enemies ambushed him and his Divine Soul drifted through the cosmic Chaos for several hundred years. Now he possesses a body which belongs to another man also named Lin Mu, a live-in son-in-law of the Qin Family in River City who was constantly mocked and humiliated.“Rest assured,” Lin Mu mutters. “Since I have taken your body, I will naturally avenge you.”

Inescapable fate ends here. Only Gilded Ashes remain.[FREE 50 CHAPTERS BEFORE LOCK]When shadows devour his home, Raizen is left with nothing but grief - and a vow to hunt down and kill every Nyx. At his side stands Hikari, a mysterious girl with no past but a dark fate she cannot escape.From the ashes of loss to The Underworks, to the halls of Neoshima's Lotus Academy - assassins, wardens, hidden enemies, unexpected traitors and all sorts of rivals will test them at every step. Secrets stir, powers awaken, and the line between hope and despair blurs, making them wonder what being “human” truly means. As the darkness spreads, one truth remains:The real battle has only just begun.

By the time I reached thirty, I hadn't managed to provide any of the happiness I wanted for my wife.I also still couldn't become the support my parents relied on.At this turning point in my fate, my income suddenly began to increase randomly.(A daily life tale in a wealthy family setting, featuring a single female lead and no harem.)