You've Got Mail: A Cautionary Tale - Chapter 21 - Why Must You Insist On It?

Invincible fists, unrivaled hammers!

Junno is thrown into a fantasy world with starter equipment, a sword, and a bag of assorted coins. He decides to become an adventurer and earn money. Upon receiving his status plate, it appears that he has the divine blessing of many gods. Then he chances upon a s*ave.

After breaking up with his girlfriend, he accidentally acquired a genius system and rose from there against the heavens, becoming invincible..

- Description from Novelupdates

As a top cultivator in the Canglang Realm, Fang Mu has been a little troubled recently.

Because his new apprentice seems to be a little brainless.

…

Brain-disabled apprentice: “Master, the GM you killed is dead!”

Fang Mu: “Nonsense, people are killed and still not dead?”

Brain-disabled apprentice: “No, I mean, he died in the real world!”

Fang Mu: “Isn’t this the reality?”

The brain-dead apprentice “Of course not, you are just an NPC in the game!!!”

Fang Mu: “…”

…

Brain-disabled apprentice: “By the way, master, the last time it was a closed beta test, how come you haven’t been recalled?”

Fang Mu: “Oh, there was indeed a time travel back in the first two months.

But here I was blocked. ”

Brain-disabled apprentice: “Master, you are a bug…”

“Um?”

“Master, you will be corrected by GM with code!”

- Description from novelbuddy