X-Force: Beyond Omega - Chapter 31: A clue

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

- Description from Novelupdates

Transmigrated into the novel you read and became the heir of the Duke, only to be trampled under the protagonist's foot?Passerby villain?Appeared in only one chapter?“Who are you looking down on?”Ian cursed his destiny and vowed to change everything.[Ding!][A new quest has been activated.]'Oh? Do I have a system? Even better.'[Basic Quest 1: Don't let your flower slip through your fingers.]'Nice, I won't let go of her anyway.'...[Basic Destiny Quest 1: Can You Finish What You Have Started?]'Bring it on!'...[Ding!][You are at an important fork in your fate.][Unique Destiny Quest: Fight with all you have.]'Heh? Who are you looking down on?'As Ian completed one quest after another, he also inadvertently began to fall into a vortex of the unknown. He discovered there was more to this world than described in the novel.'Damn it! These suspense and twists, one after another, are killing me!'---Tags: Smut, 18+, Harem, no incest, weak to strong, Romance, Wizard, Magic, Knight, System, Multiple Planes, Elf, Demons, Monsters

[He is the villain in the house fighting essay, the roadblock in the spoiled essay, and the negative teaching material in the imperial examination essay]
His father joined the army and was named a marquis, but Mrs. Hou is not his mother, what should I do?
The stepmother seems to be transmigrating, gentle and virtuous, but in fact she wants to nurture him, what should I do?
The grandmother is snobby and wants him to give up the position of the eldest son. What should I do?
When preparing for the imperial examination, the relatives make trouble and want him to fail the examination. What should I do?
——The above answers are all in the “Complete Explanation of the Reverse Textbooks of the Imperial Examination”. This book covers family disputes, difficulties in the imperial examination, troubles in the officialdom, and the rules of power and ministers. I have a book in hand, I have the scientific test, and the teaching will not give a full refund!

Later, when the Xungui family taught their children to study, they would always take Xiao Jingduo as an example: “Study well, don’t go astray. Don’t imitate him, you won’t disgrace the words of the sages.”
* * * * *
People in the world have mixed evaluations of Xiao Jingduo, and what he is most criticized for is that he has no literati spirit, and is willing to be the sword of the regent princess and work for the princess.
Until later, Xiao Jingduo married the princess regent.
Courtier: …………No wonder!

This article is also known as “The Revenge of the Original Spouse”

- Description from novelbuddy

Born with a seed of immortality, he rose from the Han tribe at the end of the century, and embarked on the road of immortality, step by step, until he reached the other side of immortality.

Efforts will pay off. For cultivators, what better golden finger is there?

- Description from novelbuddy