Naruto: The Strongest Kakashi - Chapter 327 Butterfly Effect?

Travel through Naruto and become the son of an ordinary civilian Chunin.

In this life-like world,

He obtained the golden finger to speed up the practice of ninjutsu,

Let ninjutsu itself produce a magical change from decay.

The knife cuts the jade, and the water bomb breaks Suzuo.

- Description from novelbuddy

The one single goal in life of the Strongest Old Sage is to subjugate the Demon King. In an epic final battle, both of them met their mutual destruction at each other’s hands.

However, the Demon King was not completely destroyed!

In order to destroy the Demon King once and for all; post-death, the Old Sage trains in the World of Gods and reincarnates as the Apostle of the Gods, Will.

In the reincarnated future, the Old Sage had become a legend and his former disciples hold the supreme authority in the world. The disciples had created an organization to oppose the Demon King and an academy to nurture the new generation of Heroes.

Thus the Apostle of the Gods, Will (8 year old), enrols into that Academy of Heroes.

This is the story of a boy on a mission to save the world through epic battles while enjoying Academy life.

Qin Tian accidentally transmigrated into a sickly body, a body with broken Dantian that was unable to practice Qigong, in another world. Fortunately, God had mercy on him by giving him a level up system. Useless? That was him in the past. Not worrying about practicing Qigong, he was now able to kill Monsters to level up. Easy! Level up when killing Monsters; level up when killing people. An unbeatable sovereign of the clan in the eyes of other people, but in his eyes, he is a glittering big BOSS.

With this level up system, he will no longer encounter any bottlenecks during a breakthrough in cultivation like other geniuses; all he needs to do was kill as many monsters, clan heads, sovereigns, world experts … to have a better life.

Dedicating his life on a road to become an expert.

- Description from Novelupdates

Xuan travels to another world, and everyone can be reincarnated into another world once for free on the day they turn eighteen, until the end of life.

After each reincarnation, you will be evaluated by the True Spirit Pagoda and get the True Spirit value.

The true soul points can be exchanged for the income of the reincarnation world, such as: exercises, medicines, weapons, etc.

And Yang Xuan, carrying the one-click tracking and one-click full-level system, started a crazy journey of reincarnation.

…

Initial world: normal world

One-click tracking: Find the national martial arts boxing method, Bajiquan.

One-click full level: Bajiquan, full level!

Break through the void and see God is not bad!

…

The second reincarnation: the world of low martial arts

One-click Tracking: Nine Suns Magic

One-click full level: I Ching washes marrow, all diseases are invulnerable, diamond is not bad, life is endless, good fortune is pure yang

Pure Yang physical body, great master of good fortune.

…

When others are still trying to reincarnate into the ordinary urban world,…

- Description from novelbuddy