The System is Four Years Ahead of Schedule, But Weird is Still a Cub - Chapter 15: Cheng Shengnan’s guess

When fifteen-year-old Ren Ryūhara's brother falls into a coma after a brutal knife attack, Ren transfers into Sakura High as a first year student to uncover the truth.There, he discovers that his older brother founded the school's most notorious gang!. Ren is this levethrust into a world of territory wars, honor codes, and brutal street fights.The charismatic but enigmatic Fujimoto Hasegawa now leads Sakuratei, and he reveals that Crimson Dragons are responsible for Kaito's condition. War is brewing, and Ren must choose either he walks away from his brother's legacy, or dives into the violence that destroyed Kaito's life.But Ren is hiding a terrifying secret. He is experiencing visions.. terrible visions, flashes of violence, blood, and a future that hasn't happened yet. With his new deadly ability to leap through time he could save or destroy everything.What would you sacrifice to save someone you love? And what if saving them meant losing yourself?

In the world of Aetheria, there is one name that is feared by all. Yet, he is known more for his title, the Demon General. Whether it’s Gods or Demons, no beings dare to oppose his authority. He ruled Aetheria with an iron hand. Cities are destroyed on his whim. Countries are razed at his displeasure.This is the tale of his rise to power.This is the tale of his rise to Godhood.This is the tale of the rise of the Demon General.

The world froze.Literally froze. The chattering students, the falling cherry blossoms outside the window, even the dust motes in the air – all suspended in perfect stillness.“Oh wonderful hero,” a melodious voice echoed through the room. “Your world faces a terrible crisis, and you have been chosen to—”“No,” he said flatly.A pause. Then a shimmer of golden light coalesced into the form of a beautiful woman in flowing robes. She blinked at him. “I... what?”“I said no. I'm not interested in whatever quest or destiny you're selling. Pick someone else.”The goddess's perfect features creased in confusion. “But... but you've been chosen! The prophecy speaks of a warrior with a fierce spirit, one who—”“Lady, I don't care about your prophecy. I've got enough problems here without adding some fantasy world's issues to the mix. Now un-freeze time and leave me alone.”“You don't understand,” she pressed. “Our world is being ravaged by the Demon King's armies! Millions will die without—”

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