Naruto: Sakura Falls in Ashina, the Dragon Returns to Konoha

[Canon characters transmigrate + no System + one heroine/no heroine]

Three days before the Uchiha massacre, Sasuke unexpectedly transmigrated to the world of Sekiro: Shadows Die Twice. At Senpou Temple, the Divine Dragon sealed a Dragon’s Heritage blood pact with him.

From then on, he could never die. The more he died, the stronger he became!

On the night of the massacre, Tsukuyomi couldn’t break him, and Amaterasu couldn’t burn him to death.

When Itachi left, he looked back at Sasuke for the first time.

But that was only the beginning!

The power of the Dragon’s Heritage drove the Sharingan to mutate. The three-tomoe and Mangekyo were only a matter of time.

Seeds of Dragonrot mixed with his ocular techniques. Before his opponents could even attack, they were already coughing up blood and collapsing to their knees.

With the Mortal Blade in hand, one stroke turned Hidan’s immortality into a complete joke.

Susanoo unfolded, with the phantom image of the Divine Dragon coiling around its skeletal frame.

This was no longer ordinary Chakra Armor. It was a whole new form, born from the fusion of the Dragon’s Heritage and the Sharingan.

During the Great Ninja War, before the army of reanimated dead, one slash shattered the illusion.

“Madara Uchiha? You think you’re worthy of testing me?”

The Dragon’s Heritage immortality, every Mangekyo ocular technique, the Mortal Blade, and the Divine Dragon Susanoo!

An Uchiha who can’t be killed!

The rules of the shinobi world changed the moment the blood pact took effect!