Through a twist of fate, the protagonist finds himself trapped in a nightmarish survival game.
But the way he enters the game is completely different from everyone else's.
Unlike the other players, he isn't dragged into the nightmare in his sleep.
What looks like a nightmare to everyone else is an irresistible game to him.
This nightmare game offers no variety of enhancements, and there are no gene locks. All it has is endless struggle.
Fortunately, the protagonist has a League of Legends skill System that exists completely outside the game, and can randomly obtain the skills of League of Legends champions.
He combines them into unique skill combos, showing off endlessly in the nightmare game.