Academy’s Undercover Professor - Chapter 9: Undercover Employment (1)

Cosplayer Liu Mang accidentally crosses through time and arrived at the Eastern Han Dynasty wearing Aries Gold Cloth. (Saint Seiya!) He arrived on top of the walls of XiaPi right when it was about to fall to Cao Cao.

Horrible Accident? CheckOtherworldly Soul Yeeting? CheckTaking over some schmuck's body who died around the same time? CheckUnable to cultivate because the aforementioned schmuck's constitution is all messed up? Double CheckIn the world of Valresta where the great and powerful cultivate an energy called aether to get to where they are, Zhen Liu (Thomas Lee) is physically unable to despite having the qualities to do so.But due to a twist of fate, Zhen Liu is given the ability to create kaijin, strange and monstrous warriors to fight in his stead.By using this world's laws combined with his knowledge of Earth, watch as Zhen Liu stands above the so-called aether saints to become the one and only kaijin lord!“What the hell is a train”?!“Something that's about to kick your butt. Get him”!“Yes my lord”!

Cheng Ling, the descendant of modern martial arts, traveled to the ancient times of war, and took his family to escape from the famine, farming, practicing medicine, and doing business…

Working hard for tomorrow, only to get a place to live in this strange era after the world is stable, to stand up with dignity, instead of kneeling and begging for life.

But who knew that disguising as a man was so successful that the new dynasty left her good name everywhere.

Young Master Hou’s Mansion: Young Master Cheng is very talented, and what he said casually was the rule of the world. I must recommend him to the prince.

Guozijian sacrifice wine: Cheng Xiaoyou has a splendid beauty in his chest, and the day when the imperial examination resumes, it must be the time when he will become famous. If he can’t win the top spot, the old man will slam into a pillar to tell the sky.

Miss Xiangfu: Cheng Shenyi is a prodigy, but he has a noble character and is not interested in fame and fortune. I respect him and love him, even if I have no relationship with him, I should ask the prince’s cousin to give him a birth.

Ten Miles of Spring Breeze Hua Kui Lady: Except for the three feet of snow on your body, who in the world is matched with white clothes? In that court, were they okay with you?

With a sigh, only remote mail.

…

And the prince, who was always mentioned in passing, intentionally or unintentionally, had already quietly raised his chin.

Prince: My brother, my confidant, what do you say?

Cheng Ling:  …

- Description from novelbuddy

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