Challenging the Grim Reaper in a VR MMORPG......So, what exactly is a level?

I tried playing a VRMMORPG in a game that was my first experience with something quite remarkable about the protagonist. And after various things happened, I got KILLED by the official cheat [Grim Reaper]. From that day on, my goal in the game was decided: defeating the [Grim Reaper]. Without even leveling up. Or rather, I was a complete beginner who knew nothing about the game. Such is the story of a game beginner like me. Also posted on Harlequin.