MTL - Harry Potter and the Secret Treasures - v2 Chapter 1796 I believe

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

Twenty-six years, Jiang Yun experienced three things:
girlfriend Qin Zhao cheated;
quit his job;
Another new love.

【You are the fireworks of the world and boundless obsession】

Demining:
1. Do it first and then love the text. Jiang Yun and Lu Nian didn’t care about it in the early stage (emphasis added), so why not talk about feelings, and Lu Nianzhi and Qin Zhao are friends. That is, Qin Zhao cheated, Jiang Yun found another new love (who had broken up), and Lu Nianzhi was digging.
2. The clean party is careful to enter, Jiang Yun has an ex-girlfriend.
3. The broken mirror does not reunite, and Lu Nianzhi’s he, abusive scum text.

Content tags: Encounter by fate Near water towers Heaven made synthetic growth
Search keywords: Protagonist: Jiang Yun, Lu Nianzhi ┃ Supporting role: Qin Zhao ┃ Others:
One-sentence introduction: abused scum, broken mirror will not be reunited
Purpose: Get out of frustration, keep improving, and become self-reliant

- Description from novelbuddy

A single question has been on every fighter’s mind since the dawn of the world—which weapon is the mightiest?

The answer to that question came in an unexpected form.

Martial Online—a game that was going to revolutionize the world and its future generations was created. It was said to be so realistic that it was near impossible to tell the difference between it and reality.

Jesse Kraham, a youth from Nocklund, had been suffering from an incurable disease since he was a child. Because of the disease, he couldn't live a normal life, and he'd been living a lonely life.

However, the universe was on his side, and he received one stroke of luck that changed the course of his life and the world entirely.

……………………………………………………………

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The land of Aleisterre is a world of might and magic, sword and sorcery, where wandering knights and mysterious gods shape the fate of kingdoms. Wang Yu, a resourceful and unorthodox protagonist, finds himself inexplicably pulled into Aleisterre, a place steeped in ancient powers and political intrigue. With little understanding of the magic and faith that underpin this realm, Wang Yu is thrust into conflicts he never sought out—yet must navigate carefully if he’s to survive.Official blurb:Dragons' wings cut through the sky. Knights charge forward, magic tearing apart everything before them. Wizardry distorts the fabric of reality itself. The steam revolution stirs in one kingdom; the endless seas echo with ancient, distorted calls. Gods rule from high above, and the dark abyss leads deep underground.Wang Yu, from Earth, arrives in this unfamiliar world of fantasy.Straightforward and practical to the extreme, Wang Yu hates politics, despises intrigue, and prefers to approach everything head-on. In his own way, he leaves his mark in this mad, chaotic world.“I don’t care to listen to or understand my enemy’s story.”“I'm the tank, and you're the carry. Together, we'll be invincible.”“A man’s got to have a sense of himself, more than anything else.”Armed with an iron hammer and unbreakable will, he smashes through every obstacle in his path.