@uzee
Of course, the MC will win.
Probably those treasures from the 4 divine beasts he has found will play a role in that.
Otherwise there would not have been any meaning in him finding them.
And the reason he will win is also simple.
If he loses then this story would be over.
After all if he cannot subjugate that npc then his side will lose and any player on the losing side will be disqualified from the game.
Therefore the MC will definitely win.