MTL - The Most Beautiful Boy In Tokyo - Chapter 8 : Xiaoyu combination

A teenager named Evan Mason was reincarnated into the magical world of Harry Potter and goes to school at Hogwarts!
With only his knowledge of the future and great talent for magic, he takes the path towards the top of the magic world, only to realize that ever step he took, changed everything!

- Description from Novelupdates

Scorned by the world he was born in, Arthur had no other choice but to learn how to deal with it. Yet, just as his hard work and dedication were about to pay off, the hate towards his origins brought him to his death.

But that wasn't his fate. His future wasn't supposed to end with his head cracking against the edge of the stairs. His bloodline could not die as that would be against the wish of the universe itself.

Thrown to another world, he found himself in a situation where the skills and craft he honed would be no longer of use. His patience, his creativity, his logical thinking were no longer in demand in a world where strength reigned supreme.

Or was it?

My system is overpowered. I'm not shameless enough to deny it.

Scores of women and slaves all around? Those are the wishes of a naive kid, not mine.

Lower the price of those apples by a quarter and we will have a deal!

Dear, stop, I cannot hold any longer!

Jump in and follow Arthur's adventures as he proves that even the illogical world of sword and cultivation has its own rules. Laws, that one can learn, laws, that Arthur sets off to use to his own advantage!

Reborn in 1992, he supported the college student wife Ben and Shuo to study in a row, but she was not allowed to* after ten years of marriage, and she was scolded for peeking when she was washing her hair!

“You’re my wife, what’s up with you washing your hair!?”

“Sneak peek?! You gave me that stealing word!”

“divorce!”

He Hongchang slammed the door into anger and slammed away, but he plunged into the mouth of the hurricane where pigs can take off, and became a trend-setter of the times!

- Description from novelbuddy

You take up a student career.

Student career upgrade to lv.7

Acquired skills: primary school knowledge, junior high school knowledge, high school knowledge.

You take the college entrance examination,

You got a perfect score.

Your basic occupation has been upgraded to lv.9, and the job transfer system has been activated.

You change jobs to become a scientist, you gain R&D skills

You use research and development skills to get space fortress construction technology

You use R&D skills to gain starship technology.

You are invincible.

- Description from novelbuddy