It Seems That I've Slipped Into a Different World. Also, My Gender Has Changed. - Chapter 132: Bustling, Marriage Parade

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 few hundred years ago, Earth was affected by a mysterious force from the depths of the universe, triggering the revival of spiritual energy. However, things didn’t turn out as wonderful as humanity had imagined. The spiritual energy carried a strange power that caused the corpses of all living things to rise again, transforming into ghouls. And above these ghouls, even more terrifying beings existed…There were no ancient methods of cultivating immortality, nor any legendary awakenings of supernatural powers. But within the spiritual energy, there was also a presence of ghostly energy. This led to the emergence of Runes.Some people bore mountain runes, enabling them to move mountains and overturn seas, suppressing chaos. Others carried river runes, allowing them to reverse the flow of mighty rivers with a mere gesture. However, this process required a special profession to assist these rune cultivators—to constantly modify and engrave their runes, making them more refined and perfect.This profession came to be known as Rune Engraving.

Renji Takeda didn’t expect to die from drinking too much sake. He also didn’t expect to wake up as Leif Thorenvald, the second male lead in a romance novel.But wait—shouldn’t he have transmigrated as a villainess? Or maybe an omega in some steamy Omegaverse? Nope. Fate clearly enjoys a joke.Now he’s trapped in a story where the heroine wields divine powers, the villainess plots in silk gowns, and the dashing Grand Duke is destined to win the girl. And Renji? He’s the poor sap who gets rejected with a smile.There’s just one tiny issue.Renji is gay.So instead of sulking and chasing after a woman he has zero interest in, he tosses the author’s script into the chamber fireplace, packs his bags, and flees to the cold, quiet North to enjoy his second life in peace.Everything’s going perfectly... Until the Grand Duke, Alvar Ragnulfsson, shows up. The supposedly straight male lead is suddenly far too close—lingering stares, casual touches, and an interest that’s definitely crossing the “just friends” line.Suddenly, the overlooked second lead might be headlining a very different story.Between politics, divine powers, and a dangerously attentive Grand Duke, Renji has only one question:Is he rewriting the script... or is the script rewriting him?

Shi Jin once read a book. It was supposed to be about satisfying the desire for vengeance.