MTL - The Beloved Imperial Consort - Chapter 418 Self-sufficiency (below)

She was kicked out of the house shortly after coming of age because she was found to be the fake daughter.Everyone said she was so unfortunate that she had fallen from a wealthy family to an unknown poor and remote village.It was heard that her new family was extremely poor. She had to feed chickens in the morning, grind feed at night, and might even be sold by her family to finance her brothers' weddings.However, what was going on?Her eldest brother is a business elite and a financial tycoon;Her second brother is a medical genius;Her third brother is an award-winning actor and a super idol;Her fourth brother is the most powerful lawyer.It was said that her grandfather with poor health was a big shot only seen in the news...Her father, who dominated half of the business world, said, “My real daughter had returned! I was going to give her pocket money to let her spend freely!”A certain incredibly wealthy CEO said, “Baby! I will follow you wherever you go!”She replied, “Go away, or I'll kill you!”The CEO said, “She told me to go away! She must love me!”

In a dramatic reversal of fate, the commoner Ludwik ascended the throne and became king. Once crowned, he was immediately told that the most important work of the king is “to welcome the princess from the highest lineage on the continent as your bride”! But then, the beautiful bride who appeared muttered, “gross…” upon seeing his face. Just like that, the new queen began to wage a cold war against Ludwik. But the truth is, there lies a secret within the queen’s heart, and when Ludwik finds out about it, he ends up in a certain contract with her… The story of fantasy, harem (planned), and comedy begins here!!

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

An 18-year-old poor college student tried to apply for a job as a tutor but his life almost ended as demons' meal. In his last breath, a mysterious woman gave him a strange power. When he opened his eyes he had turned into a demon with a system that would turn him into… A pervert.

Now he must lived with his dual identity as a model student named Ethan and an incubus named Damian.