MTL - Dead Enemies, We Have a Face - ~ ☆Chapter remember

When she woke up, Lake returned to the classroom of the third year. The classmates were in class with swords and sticks, and the teacher became a female Taoist.
The little fat man in the back seat, how to put two big hammers under his chair.
Rick found this to be a global era!

- Description from Uukanshu (translated)

A man was transported to Ancient China and eventually became a servant of a declining household without a male heir. He utilized his wits and modern knowledge to help the household and eventually become trapped in the sea of political turmoils of the period.

- Description from Novelupdates

[Mature Content: NO RAPE]Let’s make a deal!“Two months, if we can survive each other in the period of two months, I will marry you without objection!”…Twenty-two-year-old Evelyn Darkwood never imagined that going to her late father’s will-reading would have resulted in a rivalry between her and her siblings. That they would become a danger to her—one who sought after her life. She never thought that her life would take such a twisted turn so quickly. And what’s worse, she comes to find out that she’d been betrothed to a man she didn’t know and had never met. Zayne Mancini.The wealthiest man. A man whose power and fame were no joke. A man who possibly could be the only one capable of protecting her. Strong, cold, frightening, all this he was and despite the danger written all over him, Evelyn felt a strange connection, hot and burning. Zayne Mancini wanted her—his betrothed (a human who was his mate) and he was going to make her his, no matter how stubborn she wanted to be about it. Fascinating, thrilling, all this she was to him—like a spark to ignite his boring life. Evelyn Darkwood was a whole package that he was slowly going to bring undone. A woman he wouldn’t think twice of burning the world for. A woman he would give his whole being to. All she had to say was,“I do”

This is a story of a man named Kim Sae-Jin, who one day, inexplicably wakes up as a Monster. Follow him and his perilous journey to get his life back as a Human, all the while growing even more versatile as a Monster in the process. This should be… complicated, somewhat.