MTL - My Hi-tech Library - Chapter 29 Is he the boss?

The heavens and earth change when the blood phoenix descends.

When a Medical student awakens in an infant's body in the deadly Hidden Mist Village, he knows surviving will require more than just his memories of a past life. In a world where children are forced to kill each other and bloodline abilities mark their wielders for death, Ren must carefully balance hiding his true potential while gathering enough strength to change the village's dark future. As Kirigakure descends into an era of unprecedented brutality, this reincarnated soul will discover that the deadliest technique isn't found in forbidden scrolls - it's knowing exactly when to reveal your true power.Fair Warning:This is a slow-burn story - no overpowered MC from the startPower progression is realistic and earned through years of dedicated trainingContains graphic violence and deathStory builds gradually with careful character and plot developmentWhat to Expect:Detailed training arcs and power progressionClever manipulation of future events using foreknowledgeOriginal story arcs and character development[This novel is for readers who enjoy:Smart protagonists who rely on wit over raw powerRealistic skill progression and strategic combatDeep world-building and political intrigueA fresh perspective on the Naruto universe]

Synopsis is in the beginning first chapter, so you can try to read it first.Zhang Fei is an ordinary human, but he is also an Incubus, and he also a Heavenly Fox.

Three years ago, Yun Qing Yan fell into the Immortal Realm from the mortal realm. Three thousand years later, he became Divine Emperor Yun who shook the entire Immoral Realm. Breaking through the void and returning back to the mortal realm, Yun Qing Yan discovered that only three years’ time had passed here. “In the past, I did not possess the power to protect the people I hold dear. Now, I want the entire world to grovel at my feet.”

- Description from Novelupdates