The Yu Brother's Case Book - Volume 1 Chapter 4.3

Oosuki Masato is an ordinary high school boy who is magically transported to an alternative world, but for some reason his doting, over-protective mother comes along as well.

A woman from ancient times falls in love with her soulmate.

“For a long time, we humans have been like the chosen race, without any natural enemies, and have long been at the top of the food chain. Unfortunately, I have to tell you...” “When there is only one bird in a forest, then the forest is basically fake, and the bird was put there by someone...” “No matter how a fish swims, it can never meet any of its kind, which only means that the fish is kept in a fish tank...” “Yes, we are the birds in the forest and the fish in the tank.” “Yes, the world we live in is virtual!”

Lin Mu Yu is one of the top players in Conquest the game before Destiny. He decides to delete his account due to a promise with his father.

Before he deletes his account, he sells all of his equipment and deletes all of his skills. After deleting his account, he suddenly gets his deletion overwritten by a mysterious source and ends up getting trapped in the game itself.

Without anything except for 3 of his skills, how will he survive?

- Description from Novelupdates