After his death, Xia Mu arrived in the afterlife.

When I opened my eyes, all I saw was a vast desert, with a pale moon hanging in the sky.

Then, another all-white monster attacked him.

Just when Xia Mu thought he was going to die, a figure dressed in black and wielding a long sword appeared and dealt with the monster.

Everything is moving in a positive direction.

Unexpectedly, an even bigger monster appeared, and before he could even ask the man who saved him his name, the man died.

In order to survive, Xia Mu had no choice but to pick up the long sword left behind by the man and fight.

He didn't know that the moment he grasped that knife, he had become Death himself!

...

From Hueco Mundo to Soul Society, from the Expeditionary Force to the Gotei 13.

This is Natsuki's life as a Grim Reaper!

(Note: Hueco Mundo is just the initial spawn point and won't last long; you'll soon enter Soul Society.)

(Note 2: The protagonist has only watched the anime, so he only knows the plot that appeared in the anime and the original TV series plots, and does not know the plot of the official novels, etc.)

A boy who unexpectedly transmigrates to a dangerous world teeming with Nen users awakens his Enhancement type. While others are still struggling to master the basics, he can already shatter meteorites with his iron fists and withstand nuclear explosions with his bare body. "So-called absolute defense is just a matter of throwing a few more punches, isn't it?" Watch as this seemingly ordinary berserker ascends to the pinnacle of strength with pure violence.