My Master is a Bug

Fang Mu, a top cultivator of the Cang Lang Realm, has been a little troubled lately. Because his new disciple seems a bit brain-dead.... Brain-dead disciple: "Master, the GM you killed is dead!"Fang Mu: "Nonsense, a person gets killed and doesn't die?"Brain-dead disciple: "No, I mean, he died in the real world!"Fang Mu: "Isn't this the real world?"Brain-dead disciple: "Of course not, you're just an NPC in the game!!!"Fang Mu: "..."... Brain-dead disciple: "By the way, Master, last time it was a data deletion internal test, why weren't you rolled back?"Fang Mu: "Oh, two months ago there was indeed a time rewind.But I blocked it here."Brain-dead disciple: "Master, you're a bug..."