The book I recommend to you is "The Peerless Heavenly Son of Online Games". The plot of this book is set in the year 2250 AD. In order to avoid the destruction of the earth caused by the conflict in reality, all countries jointly developed a game that covers the entire world,"Canopy", and all the conflicts in reality are transferred to the game. With the help of the country, the lost genius Wang Yu was able to escape from his strange illness and became the blade of the country to serve the country. I hope you like this fairy's recommendation. Muah ~😗