I Rule the Secret Realm

Chen Mo, a struggling web-novel author, spends all his savings on a secondhand server, hoping to use AI to help with his writing. Instead, he accidentally activates a mysterious cultivation-game secret realm. When he realizes that the bloodied white-robed immortal maiden in this rough-looking “game” can feel pain and cry, and can even talk to him through the screen, things start to get strange.

“Senior, please save my master!”

“Wait... don't kneel yet! I'm really not some great master!”

On one side is a desperate immortal maiden who thinks he's a hidden master. On the other is a busted graphics card that keeps overheating. Looking at the commands in his console that can change anything and everything in the secret realm, and the mountains of premium items piled up in his inventory, Chen Mo falls into deep thought:

Now here's the question:

How can he use this “Heavenly Dao back end” to help a real girl in the cultivation world defy fate and change her destiny?