Guardians of the Video Game(2014)

Jeonjaoraksuhodae

Patch is an elite video game agent working for a secret company that builds, operates, and guards the world of video game unbeknownst to game players. His perfect career as an elite agent starts to crumble as he gets spotted by the "Hungry Bird" game Player arriving unexpectedly to the game scene...

(Source: WEBTOONS)