The New Gate - Chapter 3Book 19: (6)

Bai Aoxue, the best mercenary in the 21st century, is accidentally sent back to the Chengxi Dynasty in Great Continent due to an explosion in her mission, and trapped in the first daughter of Prime Minister. After her rebirth, she is set up by her father to marry the 5th prince Jun Yeyan who wears a mask all day long.
In the face of bloodthirsty enemies, discord between brothers, collusion among courtiers and invasion of enemy state, can Bai and Jun resolve the crises? What will happen to their political marriage? How will the fierce battle for the throne end?
With many twists and turns, the book brings you to experience palace revolution, love and hatred thousands of years ago.

- Description from Novelupdates

Song Xuanhe transmigrated into a book called “The President’s Seven Boyfriends”. He became the President’s cannon fodder ex-boyfriend, Song Xuanhe.

The Song Xuanhe in the book: 180 cm tall, so attractive he would trump over even the hottest celebrities, three generations of family in business–a very appropriate rich third generation.

It wasn’t a loss to transmigrate into this kind of person. It was just that this was a rebirth story.

The Song Xuanhe in the book abused the male lead 800 times and had even indirectly caused the male lead’s death. Faced with the reborn blackened male lead, his fate was obvious–not only did he reach rock bottom, he even died without an intact corpse.

Right now, he had become the cannon fodder ex-boyfriend that was foreordained to die without an intact corpse.

——

System: Don’t you think that the male lead has been a bit strange recently? It’s like he’s plotting something in the dark.

Song Xuanhe: Plotting how to kill me?

System: No, plotting how to eat you.

——

Song Xuanhe, who was lying on the bed with an aching waist, pained back and legs suffering from cramps, cursed the System 800 times–what happened to the male lead being a shou?!

Emphasis: Xiao Yuanmu is the gong! Xiao Yuanmu is the gong! Xiao Yuanmu is the gong! Moreover, the big shot has always been a gong! Spoilers only up to here!

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