As the title states, I've forgotten a fiction I read a long time ago on here. I'm hoping someone can remember it, though I don't recall a lot about it.

 If i'm remembering right, he was an older man, i think in his late forties, and either retired or was taking a break from his work. He decided to play a VR game. I'm not entirely sure but i think he decided to become a mage. One of the major things i remember is that there was a world boss in the game and thousands of players were trying to kill him, but he had like dragon magic or something and was killing them by the thousands.

 This is a fiction I read on here back in either 2013 or 2014 i'm not entirely sure. But I've been trying to find it for a while now with no luck. So if anyone has any idea about this, i'd deeply appreciate it if you'd be able to answer this.