MTL - Mysterious World, I Have Special Understanding - Chapter 13 you found out

At age 5, Amon unlocks the unique «Fury» genetics and is what caused his behavior to change.

After living with his grandparents for 11 years he learned to behave. For reasons he can’t know, his grandparents faked their deaths, and now he needed to move.

Now he would have to face a new challenge which was to live with his mother and stepfather and two twin sisters not linked by blood and go to school.

Li Yi accidentally obtained a black science and technology library, which contains countless books of the inheritance of high-tech civilization and records countless knowledge.

There are thousands of bells in the book, there is a golden house in the book, there are many horses in the book, and there are Yan Ruyu in the book.

Li Yi has completely turned into a bookworm, learning all kinds of knowledge from the library, grand unified theory, particle Tebo theory, …, acquiring various black technologies, superconducting materials, super batteries, intelligent algorithms, … .

- Description from novelbuddy

A story following a young hunter named Jay. He has grown up in a world where dungeons, monsters, and humans with leveling systems are a cultural norm. At the age of 20, he awakens a skill that allows him to steal the abilities of monsters. While others are stuck with a specific skill set, he continues to grow stronger after every battle.

Follow Jay's journey as he learns more about his unique situation in a world that's grown blind to the real dangers of modern-day dungeon diving.

“While playing a Tsukkur erotic game that I loved, I somehow became possessed. To make things worse, I transformed into a perverted kid—one of the villains from the NTR series.”