MTL - My Hi-tech Library - Chapter 15 level challenge system

Ryouma Takuma, a 39 year-old man with a hidden past, finds himself in a strange white room. There the gods tell him that he has died and that they are sending his soul to a different world; a world where magic exists. After living alone for three years his gamer soul loses common sense and starts toward crazy routes.

Having traveled to the year 1983, Lu Jiaxin found herself at the start facing the failure of the original host in a high school exam, a stepmother who was sweet on the outside but dark-hearted, and a purely self-interested father.Designer Lu, facing a hellish start, decided: if her stepmother made a move, she'd countermove tenfold! If her father failed to act like a human, she'd teach him how to!She still intended to continue college; she heard that the degrees from Hong Kong University in the '80s were quite valuable, so she flung her sleeves and bravely explored the financial and business circles of Hong Kong.Bulky mobile phones, beepers, “007” on the dance floor!Victoria Mountain, Shallow Bay, female tycoons of Victoria!

The summer I was 17. A painting I created was sold. For 1.4 billion won.

The ill-fated high school student Liu Yuan obtained the inheritance of the top civilization in the universe and changed his own destiny. He also used many powerful technologies in the inheritance to lead the Chinese nation to rise in the universe.

- Description from novelbuddy