Youkoso Jitsuryoku Shijou Shugi no Kyoushitsu e - Volume 17, Chapter 6 Introduction

An ordinary (?) grandfather, Choi Chuntaek. In an effort to protect his granddaughter, he started the virtual reality game 'Arkstar.'

Then... he accidentally obtained a legendary class?

Ted was reborn in London in 1991, and he had dreamed of becoming a millionaire, but a letter came from Hogwarts!

I thought that relying on the card system and monthly knowledge of other worlds, I would not be the second greatest white wizard of this century.

In the end, you told me that there have been two confluences of stars in this world, and now it is full of magical animals and plants from other worlds, as well as intelligent races!

What’s even more outrageous is that the savior has changed into Neville! Harry became Harley!

Nanadi, play Yindi with me, right?

Then no one wants to live~

System Upgrade!

- Description from novelbuddy

Chen Rui, an otaku from earth, is reborn into a human body in another world, who falls into the legendary evil, brutal world of the devil called Mozu where humans are treated as food. He has to survive while facing horrors of the devil, violent dragons and a variety of powerful enemies by depending on a strange super system chip and his wits. Surrounded by Devil’s beauties such as black-bellied lolita princess, cold queens, violent dragons, charming poisonous devils …

Wanting to live in the Devil’s world is hard! Wanting to live in the Devil’s world as a human is harder! Wanting a human to be the devil’s son-in-law is hardest!

Let us see how a small otaku uses power and strategy step by step starting from an ordinary human to writing a legend as the devil’s greatest son-in-law.

This is a story about exploring technology in a wizarding world.Probability, electromagnetic induction, nuclear physics and theory of relativity—all of this can be mastered through scientific exploration and learning.Richard had always thought so… until he transmigrates to a world similar to the Middle Ages and becomes a prince. In this world of wizard and magic, he embarks on a journey to explain magic with science. One day, a dragon takes him away.“This is not in line with aerodynamics? It does not satisfy the Kutta condition, Circulation Theory of Lift and Bernoulli's principle either? How can it fly? Is there a special power source in its body?” Richard could not help saying as he glances down at the huge dragon he was riding on. “Well, I need to research this.”“By the way, you said you kidnapped me to find a playmate for your daughter. That doesn't sound like a good reason, right?”“Roar!” the dragon hollers furiously and waves its wings, soaring into the sky.Will Richard be able to continue on his journey of exploration and unravel the mystery of the wizarding world?