MTL - Genius Fundamentals - ~ bright

In the world of dragons and snakes, the talented but congenitally sick martial arts master was reborn as the sole heir of the 19th-century Canadian manor owner. He thought he would make money by practicing boxing, but he took advantage of the industrial revolution to become a giant of the times. The opened template.

In the end, the original owner was a hopelessly sick and consumptive ghost! I am still a bastard having an affair with a gardener…

Wait, what’s up with the claw?

James Howlett looked at the bone claws protruding from between his fingers, and became more and more worried about his future.

- Description from novelbuddy

One day, Luo Jian woke up from his sleep and found himself in a locked chamber where the door and window were all sealed. A note with a few lines written on it was tacked to the wall: “Escape from this room within an hour, otherwise, you will die.”

There is a sequel called Reincarnation Night (轮回之夜) that takes place in the same universe but has different main characters

- Description from Novelupdates

A good-for-nothing man married a beautiful girl but was kicked off the bed on the wedding night. Furiously, he wrote a bill of divorce and ran away.
He was schemed a car accident in which he nearly lost his life. However, it turned out to be a blessing. He swallowed the soul that passed through the outer world, thus obtained superb medical skills and martial arts.
Later on, with the silver needles and invincible martial arts, he embarked on the road of counterattacks and was committed to his great dreams.

- Description from Novelupdates

Cain was living his best life as the leader of CROSS, a gang ruling Zone A, District 4.At 21, thanks to constant cigarettes and booze, he looked older than his years. He didn’t finish college or have a job, but he made a living through “guard fees” from local markets and his shady side business.One night, his life turned upside down when a shooting star crashed through his window, transforming into a cute fairy girl in a pink dress and rabbit hat, who declared herself the Idol-Idol Goddess!Now, Cain has to juggle being a gang leader and a rising idol star. Can he balance both lives without blowing his cover?[RPG System Style. No Harem. Drama. Romance. Face Slapping. Idol. Magical Realism. Urban Setting. Beautiful Female Lead. Strong ML. Smart ML. Handsome ML. Cold ML] XD