MTL - I Have Countless Swords - Chapter 1070 The world inside the gate

16 years old-- most boys would be falling in love, as their hormones all rise to unprecedented levels. Most boys at Riley's age would have dreams; dreams that will slowly grow into passion. Riley, however, at age 16... killed the world's number 1 superhero.

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

“You died.”That was what the mysterious figure told him, but then he was given a second chance for the good deeds that he did in his previous life.“Super Prodigal System!”“Cultivate to immortality by wasting as much money as you can!”For the former number one prodigal of Earth, this was the perfect system!