Tree of Aeons - Treeal by fire

He lived from BC to the Middle Ages, from the Renaissance to the Industrial Revolution, and from Cyberpunk to the Interstellar Age. He has been a king and a prophet, a knight and a nobleman, a versatile artist, a genius inventor…
This is a four-thousand-year human epic——
“To us four thousand years from now:
“Is the world at peace? Is famine extinct? Can people touch the stars? How long is the human lifespan? How far is the boundary of the earth? Human…do you remember us?”
——Excavated from Earth Age Tenth Century BC, Solomon Prayer Book.

- Description from novelbuddy

Theatrical regression life of an old-fashioned villain (kkondae) who recalled his past life.

“There’s nothing I wouldn’t do for a better life.”

——

Survival in the ‘Otherworld’; a place where only the insane can set foot in.

Su Bai, who entered the horror game, obtained all-professional talents, which could light up the underworld professions.

Ghost teacher, ghost doctor, ghost psychologist, ghost painter, ghost massage therapist…

“Miss, please get dressed, I’m your teacher, don’t be shy.”

In the vampire castle, Su Bai said solemnly to a vampire girl.

“Beauty, please don’t worry, the doctor’s eyes don’t distinguish between men and women.”

In the Necronomicon Hospital, Su Bai, who was doing a gynecological examination to a glamorous female zombie, said solemnly.

“Madam, please respect my profession, I am a painter, I only sell my art, not my body…”

In the Devil’s Manor, Su Bai had some headaches. No matter what profession he chose, his charm value was full.

Even driving a taxi is molested by female ghosts.

Can you still play the game? …

- Description from novelbuddy

“Teacher, you know me. I’m usually a good student, with nearly 100% attendance, and I’m also eager to help the people.

Yesterday I flew to the coast to fight monsters, so…”

“Teacher, you know me. Which teacher is not full of praise for me, but things are prioritized. Yesterday happened to be the Ghost Festival. Hundreds of ghosts walk at night, so I…”

“Teacher, you know me well. I am an activist in our dormitory. Every day I call them to go to class, but under special circumstances, so…”

“Teacher, I’m a foreigner, I don’t understand what Xie said, and I didn’t know there was a class yesterday, so…”

The teacher took off his glasses and rubbed his temples, “I can tell that everyone in your dormitory has stunts, but this is by no means a reason to skip class! This class! This year! You guys are all done!”

————————

Another version of the introduction: Ultraman Delta was living in another world for unknown reasons. Originally, he wanted to be an ordinary college student, waiting for one day to find a way to return home.

But the sudden appearance of a monster disrupted his plans, and he also discovered that his roommates were not ordinary people either.

- Description from novelbuddy