MTL - Marvel: Trading From the Ninja World - Chapter 5 2nd Ninja World War

In the midst of a ruined forest, due to the result of the clash between peak powerhouses, a body of a man lay. He was known as the 'Evilest Villain', the worst man ever born in humanity.His body was full of wounds with a spear piercing his heart. However, even in his final moments, he was calm and collected, with his usual cold face.

The only thing on his mind was, “Forgive me, I couldn't keep my promise to you.”

He closed his eyes, ready to begin his eternal slumber in the darkness.

Suddenly, a blue light appeared, with ancient text that read, 'Do you want to turn back time, my child?'

He laughed and said yes.

| Fate Devourer System |

[Initializing......................24%]

[Authority: Deus Time Control (Rank ?!?) used]

[The Goddess of Time wishes you the best].

The dark BOSS, who had the fortune of becoming Earth’s last living human, brought with him his loyal, second last human to die, little brother to be reborn.

Xia Yan passed through to the world of Bleach and became an eleven-year-old boy. He was rescued by Renji and Rukia in the Seireitei, and he was studying at Shin’ō Academy, and he was a student of the same class.
He is a top student of the Shin’ō Academy, and he is vying for strength by various teams. In the end, he has entered the first team of secret mobile maneuvers.
He will use punishment to kill every person who tries to threaten the martyrdom and protect his loved one.

- Description from Novelupdates