The Regressors are Trying to Kill Me - Chapter 5

Ernest Quelt, the alchemist renowned for his unparalleled mastery of alchemy, has perished.But his death wasn't a noble sacrifice in battle, nor the result of a failed expedition—it was a betrayal. The very comrades he trusted most turned on him, driven by envy of his growing power.Yet fate wasn’t entirely cruel. With his final breath, Ernest's gaze fell upon the tube that contained his greatest achievement: a perfect artificial being known as the Homunculus.More than just a vessel resembling a human, this creation harbored the power of a catastrophic beast—one that had once nearly brought the world to ruin.

At the age of eleven, the youth Ye Xuan's soul traveled through time to the distant Mythical Era, becoming an Undying monster emerging from the Emperor's Burial Ground, influencing one era after another. Yet behind Ye Xuan, an invisible force manipulated everything. Struggling to take control of his fate, Ye Xuan exhausted all means, but just as he was on the brink of success, he was betrayed by his disciple and wife, causing his soul to slumber for ninety thousand years.When Ye Xuan awoke, he found himself back in his own body and had become the son-in-law of the Emperor Immortal Sect, treated by others as a fool. The story begins from here.Eternal Emperor Soul, returned overnight.From then on, an emperor rose as a son-in-law, ushering in an invincible myth that dominated through the ages!Simplified version: The foolish son-in-law, soul returned, rose in one morning, invincible through all ages.Show-off version: “I am invincible; do as you please.” — Ye Xuan.Meme version: That year, my hands in my pockets, I knew no rivals.

Once through the pirates, Lu En became the son of Monkey d Dragon, a grandfather named Monkey d Karp, and an unreliable and neurotic younger brother named Luffy.

Fortunately, the ghost back system is activated!

The completion of the ghost back is 10%, and the training effect is increased by 100 times!

The completion of the ghost back is 20%, and the training effect is increased by 1000 times!

…

One day, Lu En, a ghost-backed master, appeared in front of Luffy who was shouting to go to sea, and made Luffy cry on the spot.

Luffy: “The pirates in the sea are all monsters like my brother? I don’t want to go out to sea!”

Garp: “For a long time, the two boys, Long and Luffy, with small arms and calves, I really doubt that they are not my sons and grandsons. Like Lu En, they are the grandsons of the old man!”

Warring States: “The strongest creature in the sea, land and air is Kaido? No, it’s Lu En!”

- Description from novelbuddy

As the number one pill alchemist of the immortal world, Mu Chen had always believed that it was because he had single-mindedly focused on concocting pills that led to him to neglect disciplining his disciple. Which in turn, caused his disciple to be led astray by the seduction of devil cultivation, leading to the three realms to fall to disaster. After his rebirth, Mu Chen resolved to properly teach his disciple, give him the very best resources, earnestly love him, carry him close to his heart, teach him by way of example, and didn’t let him grow corrupt.