Moon Seon-woo! He spends over half his day grinding for items in this VR game known as “Final Kingdom” just to make ends meet, with no stable job or anything.

Seon-woo, being all ambitious for cash, gets hooked up with a job through a friend, but guess what? It’s a total trap!
Taking a huge risk, he fulfills the hidden quest conditions and ends up in some secret hideout where he wakes up this sealed women named Se-jin.

Turns out, Se-jin is a total Expert when it comes to “Final Kingdom”! She knows all the ins and outs of the game!
Now Seon-woo’s got his sights set on clearing all the hidden quests, aiming to become a fat-cat in the process…