MTL - Devil’s Son-in-Law - Chapter 36 Sad reminder of Allen

Wang Xuan entered Longmao Square and was trapped in it. When he finally left, it turned out…

This is the last building on earth.

- Description from novelbuddy

Alvaric Zorvok, an ordinary young man who desperately wanted to become an Awakened. But when that moment finally came, he was instead summoned to a strange world—a desolate land filled with all kinds of monsters.His life became a struggle, and he came close to death countless times.Slowly, he climbed his way up and became one of the most feared beings in that world.“Can I ever return to Earth?”Alvaric didn’t know when—or if—he could go back. All he could do was fight, explore, and search for a way home.

An ordinary (?) grandfather, Choi Chuntaek. In an effort to protect his granddaughter, he started the virtual reality game 'Arkstar.'

Then... he accidentally obtained a legendary class?