MTL - Genius Fundamentals - Chapter 6 equation

Amakawa Haruto died before he’d the chance to reunite with his childhood friend who disappeared five years ago. Rio, a young boy living in the slums seeks revenge for his mother who was murdered in cold blood in front of him when he was only five years of age.

There exists the earth many knows of and there exists an alternate world. Two people, each with their own backgrounds and values. For odd reasons, the memories and personality of Haruto, one who should have died resurrects in Rio’s body. As the two are confused over their memories and personality fusing together, Rio (Haruto) decides to live in this new world.

Along with Haruto’s memories, Rio awakens an unknown but special power. If he’s to use it, it looks as if he can live a better life, but before that, Rio encountered a kidnapping which results in involving the two princesses of the Bertam Kingdom.

After saving the princesses, Rio is given a scholarship to attend the Royal Academy, a school for the rich and powerful. His background being a poor orphan who once lived in the slums, the school full of nobles was rather a detestable place to stay at.

“Take me in, I’ll do anything you want me to!”

Before his death, he was the only sword cultivator in the whole world, who dedicated his entire life to the path of sword immortality.

When he opened his eyes again, the world had completely changed. He began to cultivate the path of sword immortality again, slaying the heavenly way, shattering the universe with his will, and achieving the realm of sword immortality!

- Description from Novelupdates

Weary reader, it is an honor for you to choose this book in this heavy, dark library room.

Somewhat sadly, the book is sick.

Your fingers should be able to feel the raised growths on the surface of the book cover,

The words written in the old days are like parasites rooted in the pages of the book, hoping that someone can observe their wriggling,

To feel, to analyze, to touch the story of the disease.

If you insist on borrowing this book, be sure to check your physical condition regularly.

- Description from novelbuddy