【Defection】【Capture the Tailed Beast】【Nuclear Shadow】【Slow Pace】【Multiple Female Protagonists】

The pace is a bit slow in the early stages of the story.

From just wanting to protect his family and survive the night of genocide, to later thinking about the right and wrong of the ninja world, and finally transforming the ninja world into what he wanted.

"If I fail, I'll be the worst sinner. If I succeed, I'll be the savior!"

Kato Dan, a Konoha Jonin who died on the battlefield, was not allowed to enter the Pure Land; instead, he was bound to the Death God System.

Awaken your Zanpakuto, gather the dead, build the Soul Society, and reshape the order of the dead.

"What? The 'corpse demon' in the Corpse Demon Seal is actually a spirit-eating monster?"

"It's alright, I have countless prospective Grim Reapers backing me up."

He ignored the system's warnings about not interfering with the living world.

"If I become the Grim Reaper and then ignore everything, wouldn't I have wasted my life?"

The creation of the Gotei 13, Nawaki, Sakumo Hatake, Sasori's parents, and the longing of countless dead souls for their loved ones.

"The final resting place of the deceased is defined by me!!"

Death God vs. Ninja, Ninjutsu vs. Kido, Chakra vs. Spiritual Power

Behind the scenes of the ninja world, countless 'people' are watching.

Then let me, the Grim Reaper, reshape the ninja world!

From today onwards, this world will be renamed the World of Death.

Those who peer into the world of death will be peered into by death itself!

[Multiple female leads + semi-invincible + slow-burn, hoarding type + rejects bloodline dependence]

When Gu Yuan woke up, he found himself transported to the Naruto world. Due to a traitor's betrayal, he was now the only surviving member of his family. Fortunately, his parents and his senior sister, Kurenai Yuhi, had a close relationship, and Kurenai took him in. She discovered his special ability as a transmigrator—the ability to enumerate all possibilities. As long as he could set variables and conduct practical deductions, he could obtain the desired result.

As he gradually calmed down, he forgot the cruelty of the ninja world. It was only when the night of the Uchiha massacre approached that he realized he was about to lose his friend Uchiha Ryūna. In order to find a way to save her, he overexerted himself and fell into a coma while performing mental deductions. When he woke up, it was too late, and he didn't even get to see her one last time.

Worse still, the overdraft caused problems in his ability-advancing mind lab. Only when he experienced a complex emotional state that resembled both romantic love and familial affection could he utilize his computing power to the fullest extent and complete the unfinished blueprint for the life ninjutsu...

He had no choice but to target his childhood sweethearts, planning one confession after another, but all of them failed due to unforeseen circumstances. Just when he was feeling disheartened, he discovered that the girls actually had quite a few feelings for him...

The world has always been a place of survival of the fittest, and he chose to do his best to pursue his goals, leaving the rest to fate.

Self-defense accessories, tactical units, automated puppets, ninja life forms...

The desire to protect everything pointed him in the right direction, and the fusion of emotions fueled his inspiration, gradually giving him the power to challenge the entire world.

Gu Yuan: To hell with bloodlines and eye transmission! As long as I can set variables, I own the whole world!