Coiling Dragon - Book 19 - Metamorphosis - Chapter 2 – Flamebone Mountain

After Reincarnating into Naruto World at the Warring State Era as an Uzumaki, Masahiko thought that he got a useless System. He lived for 48 years as a normal, below average Uzumaki Shinobi.

That changed when he finally knew how the system works the day of his 49th Birthday!

- Description from Novelupdates

Every year, the Trial World summons chosen humans to face its brutal tests—deadly monsters, unpredictable trials, and the ever-approaching calamity that threatens to wipe out entire worlds. Only by defeating the Demon God can a minor world ascend and escape destruction.Leon Kael, born into a renowned family, awakens a Divine Talent on the day of his summoning—an ability that makes him stronger with every attack he delivers. Power isn't gifted freely in the Trial World. It's earned, carved out in blood, sweat, and unrelenting battle.Armed with this mysterious talent and the drive to protect everything he holds dear, Leon steps into the world of trials where every strike brings him closer to overwhelming strength. The path ahead is paved with bloodshed, glory, and the roar of defiance.If the gods must be attacked to survive—then let them bleed.

By the year 3029 CE, Earth’s technology has developed rapidly, borders no longer exist, and Earth has been unified, marking the beginning of the era of the Federation.

At that time, a huge sword flew from the heavens, piercing the sun and causing a huge sensation on Earth.

Perhaps because the scabbard of the sword was already in tatters, countless shards have broken off from it following the collision with the sun and spread across the universe. Many of these shards have landed on various places across Earth.

With the arrival of the bronze sword and its shards, a new unlimited energy source has suddenly appeared on Earth. This energy source has since been named Spirit Qi.

Spirit Qi is like air, thick in some places and thin in others. As the Federation and other factions gather more shards, they discover more information on cultivation, pill refinement, Spirit Stone refinement, and other techniques. The words on the shards have an ancient feel to them, making it a trend for people to use ancient language.

The appearance of Spirit Qi rapidly makes the original energy sources obsolete and has completely changed people’s lives. Not only has the Spirit Internet been formed, Spirit Qi has also changed the course of Human Civilization, causing the world to enter a civilization of cultivation. This would later come to be known as the Spirit Inception Era.

- Description from Novelupdates