World-Ending Demon Emperor - Chapter 42 - 40 Sister-in-law

A college student, accidentally reborn into the world of Naruto, becomes a member of Uchiha who is destined to be exterminated.

In this cruel ninja world, in the face of endless wars and exclusion from the village, what will Uchiha Qing do?

PS: Later in the book, the protagonist will develop a system of immortal cultivation. Cultivating Immortals in the Ninja World, have you seen it?

- Description from novelbuddy

Facing extinction, humanity seeks salvation in the Astral Verge, a dangerous dimension accessed via portals that threatened to wipe out the entire planet.Few years later, aspiring recruit Daniel Vance enters the Verge for his final assessment, hoping to Awaken a Talent and secure his future. While others gain common abilities, Daniel secretly Awakens the mythical SSS-Grade Talent: [Soul Assimilation]. This allows him to absorb essence, enhancing gear, gaining stats and EXP from slain creatures, and crucially, absorbing attributes and skills from fallen Awakened.Witnessing the swift death of the arrogant Jaxon Rex, Daniel makes a grim choice: he assimilates Jaxon, gaining his first skill, [Kinetic Pulse]. This sets his path: scavenging the aftermath of others’ battles. He enhances gear and, after achieving his first kill on an injured beast, waits patiently to assimilate two more fallen recruits, acquiring [Quick Step] and the invaluable passive [Aura Sense].Starting as average, Daniel rapidly gains power in secret, enhanced gear, multiple skills, and boosted stats , far exceeding his peers while remaining outwardly unremarkable. He navigates the lethal Verge alone, using its inherent dangers to fuel his growth, wrestling with the moral cost of his unique, overwhelming power.

The protagonist is an accidental time traveler - he didn't wait, didn't guess, only dreamed, but ended up in history, which he didn't pay much attention to. He was just lucky with his lineage.Ryo is a new member of the Nara clan, from the Uzumaki lineage on his father's side, and it so happened that he was born not at the beginning of the known plot, but more than three decades and two world wars later. Now he has to figure out how to get out of this situation however he can.

My disciple, whom I raised and cherished with my whole heart…That same disciple has returned and is trying to kill me.“Before you fall, before you cease to be my idol, my hero, my sun, I will kill you with my own hands. For your honor!”Just wait for a while…I’ll bring you back to your senses.