Dive in the Afterdark
A young man starts playing a Full-Dive MMORPG to escape from reality. Sadly, the use of a game feature that is frowned upon by other players lead him to being bullyed.
Having lost faith, he decides to quit from everything, but to his surprise, the game developers send him a message: "We're sad to see you go, being the only one who managed to explore the game feature we are more proud of in its entirety. To complete the procedure, please play through this especially made farewell dungeon."
Little he knows that crossing that last gate would lead him to a way of escaping he never imagined.