Physician's Odyssey - Chapter 816 - Solitary Hero

The notorious firearms crime lord Chen Zhang An a.k.a Old Fox was placed under house arrest by the very successor he groomed.

The story follows Danheng, who transmigrates to the Douluo Continent seeking a peaceful life, only to be persistently pursued by Gu Yuena, who insists on becoming his wife. She encourages him to strive for greatness, aiming for him to become the leader of soul beasts, the Dragon God, and the ruler of the Divine Realm. Despite his desire for a quiet life as a librarian, Danheng finds himself entangled in various challenges due to his wife's ambitions.

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

Zhang Xiao Qiang is a nobody in this apocalyptic world with danger lurking everywhere, he is forced to wander around and learn the rules and principles to survive. Over the course of time, Zhang Xiao Qiang’s character and laziness slowly wore away from the experiences he faces. Zhang Xiao Qiang becomes more resilient, of course also gaining power whilst watching the lunatics of the apocalypse trampling on everything they could trample on. Zhang Xiao Qiang always maintained a bit of conscience in him. He never had the thoughts of being a hero, yet he doesn’t mind sharing bread from his plate. Zhang Xiao Qiang will continue to live in the cracks of the apocalyptic world until the crack can no longer hold him.