My master is a bug

Fang Mu, as a top cultivator in the Canglang Realm, has been a little upset recently.
Because his new disciple seems to be a little brain-dead.
…
Brain-dead disciple: "Master, the GM you killed is dead!"
Fang Mu: "Nonsense, how can a person not die after being killed?"
Brain-dead disciple: "No, I mean, he died in the real world!"
Fang Mu: "Isn't this reality?"
Brain-dead disciple: "Of course not, you are just an NPC in the game!!!"
Fang Mu: "..."
…
Brain-dead disciple: "By the way, Master, the last time was a deleted internal test, why didn't you get rolled back?"
Fang Mu: "Oh, there was indeed a time travel back two months ago.
But I blocked it here."
Brain-dead disciple: "Master, you are a bug..."
"Huh?"
"Master, you will be corrected by the GM with code!"