MTL - Marvel: Become Athena - Chapter 74

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

As a successful author, Max was used to hate comments but he never expected that his decision to kill an important character would result in his death.Apparently, the Goddess and her brother used to read his novels and were both a big fan of his works. Sadly, the brother didn't like his decision and killed him.As compensation, the goddess decided to send Max in his own novel as the protagonist and complete the story without letting any of the main characters die.Max had no problem with that, so he accepted it and asked for something else too.“Can I court you?”Now, he has the Goddess accompanying him as the Ultimate Leveling System. Not only that, his system also rewards if he saved the favourite characters of his novel. What could be better than this life?[You have Killed the Giant Behemoth Dragon, granted 200000 EXP.][You have saved the side character, Charlotte Sinclair, granted the fortune worth Corelhelm Kingdom.]Watch as how the author makes the harem of his favourite characters while leveling Endlessly....What to expect-Leveling+Mana Cultivation+Labyrinth adventures-OP MC-Light Hearted, Low stakes-A proper Harem and good romance-Very less Smut (yeah, the number of those chapters will be very low as I intend to focus on relationships, adventures and of course Labyrinth stuff.

This is a story of an ordinary boy gaining unusual powers from his nightmares… It all started when Lin Sheng experienced something strange on what he thought was just another normal day. He begins to have recurring dreams that lead him on an incredible journey of discovery as he encounters spine-chilling monsters and elusive secrets.

- Description from Novelupdates

Qin Chuan arrived in a parallel world and got bound to a system.