Legendary Ranker’s Comeback

A brief description of the manhwa Legendary Ranker’s Comeback:

Once upon a time, the game about the apocalypse in the dungeons of Dream Side became a reality.

I work as a messenger and deliver packages, just like any other day, I was taken by surprise by the elevator, which suddenly stopped, and a blue window appeared in front of me in which a monster appeared!

I used to play a game that had won first place in the past. Remembering this, I broke the tutorial on extreme difficulty and continued to play like a stagnant person…