MTL - Best Son-in-law - Chapter 3040 I'm with you no matter what happens

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

“You are my salvation and an answer to my cursed eyes.”------In a world of vampires, werewolves, and witches, a girl is born to be the bride of the vicious and bloodthirsty 300-year-old immortal Vampire Prince. The man who could never be enticed by any ethereal beauty till now suddenly has shown interest in a woman with a curse whom everyone abandoned.Alora Wilson, the eldest daughter of a high-noble human family, is born with the curse of an old powerful witch.It is the curse that burns the person into ashes if the person looks directly into her eyes. A curse that forces her to wear the blindfold since the moment she was born in this world.When the kids of her age enjoyed every small moment of their lives, she couldn't. No one loves to befriend her. Even her own father and siblings despise her.One day Magnus Lukeson, the Vampire Prince, enters her life– The man whom the entire kingdom is scared of. A man with only foes and no friends. A man who ventures his territory at night to take the fresh blood out of humans irrespective of the age or gender to quench his thirst.~~~~~The blindfold cascaded off Alora's eyes and her enchanted blue eyes met with Magnus' blood-red eyes.“You have enchanting eyes, Alora,” Magnus pronounced.No one ever said that to her. But no one could look into her eyes either. Only Magnus was the exception. The reason was still unknown to her.“Shall we begin the night?” Magnus asked for her permission.“Will His Highness give me love?” Alora asked. She was desperate to be loved. The feeling she could never get from her family and only heard in the words.“And how am I supposed to provide love to you?” Magnus queried since he was curious to know her thoughts.“Holding hands, hugging each other, sleeping together, and sharing thoughts. Isn't that how you shower love?” Alora innocently asked.Magnus ended up smiling to hear her explanation of love. He leaned down and kissed her lips, causing her to shiver from that sudden feeling. “This is the way I shower love,” Magnus pronounced, gazing into Alora's charming blue eyes.

At the age of 16, Bian Yue became an orphan, inheriting a massive fortune from her family and becoming the wealthiest young heiress in Xiangjiang. The Li family, close friends with the Bian family, took pity on her and brought her to their home. Upon first meeting Li Siheng, he approached her past rows of black-suited bodyguards and tenderly offered to take her home, a gesture that would captivate her heart for a lifetime. At 22, Bian Yue managed to marry Li Siheng, but under the dim lights, he, with an indifferent tone, confessed his change of heart. Determined to part gracefully, Bian Yue resolved to give Li Siheng a decent break-up.Xiangjiang's newspapers headline the daily news, reporting that Shen Jin, the head of the Shen family, frequently visits temples due to a terminal illness and is on his deathbed. People applaud behind closed doors, citing his ruthless actions as karma. Seeing this, Bian Yue devises a plan. During a continuous downpour in Xiangjiang, Bian Yue sits in the Shen residence, drenched. In the dim light, she sees the distinctly elegant and captivating Shen Jin and hesitantly proposes marriage, to which he coldly agrees. Their marriage is hastily arranged, stirring public uproar.Meeting Li Siheng again after her marriage, Bian Yue takes shelter from the rain. Li Siheng rushes out of his car and runs to her, desperately holding her hand and pleading for a divorce so he could marry her. That night, Shen Jin, who was abroad, returns instantly upon hearing the news and confronts Bian Yue, who had just come home. Lighting a cigarette, he casts a more enchanting silhouette against the night, kissing her fiercely. He promises that the rainy season in the harbour city will end, and he will also wait for her return home.

This story is centered around the man named Yi Ji-Hyuk, who has spent 1000 years in a Medieval Western fantasy-like world before returning back to the modern-day Earth. When he returns, he finds that his home is facing monster threats, and that humans with superpowers have appeared to protect the innocent people of Earth.