Martial King's Retired Life - Chapter 10Book 15:

Earth’s top weapon specialist’s soul crossed over to an alternate world, merged with Rebirth Martial Emperor’s memories, cultivating Nine Dragons War Sovereign Technique, sweeping through all opposition with invincible might!

Able to refine medicine, capable of crafting weapons, and knows the art of inscription….

Being skilled in all professions is the way of kings!

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.

The boy who Sneaks in My Bedroom Window

He had four disobedient disciples, who now achieved success, won recognition and established their own sects.

The embarrassing thing is that it was him who drove those four out of his sect to make them independent.

But one day he had an incident and lost his cultivation. His life was hanging by a thread. Wandering around, he walked into his third disciple’s territory.

What should I do?

Mountains and seas can be tamed, days and nights can disappear.

Only you, the exceptional you, refuse to give up.

——

A man blessed with fortune, the best in his generation, had an accident and started anew; broken in body but firm in spirit, he now uses his wisdom to guide his evil disciples back to the right path.

Notes :
The title 参商 (Shēnshāng) has two meanings:
1) Constellations Shen (ch. “Three Stars mansion”, eu. Orion) and Shang (ch. “Heart mansion”, eu. Antares), which never appear at the same time.
2) Two friends/relatives who are separated/estranged and irreconcilable.

- Description from Novelupdates