I don't think that Bada is an npc. Rather, when he entered the game, it's been a long time already and the game itself may have affected his memory of the real world, but he doesn't know it or didn't realize it immediately which is why he can't remember beyond his life in the game. The longer he is there and the more rounds he plays and dies, the more he forgets and his memory becomes blurrier. Doha is perhaps a player like Bada but has entered the game much later which is why, when Bada played all these rounds, Doha didn't play much of a role in his progress, because Doha was still an NPC back then. But his NPC status changed cause that's when the Doha we know entered the game and he could possibly have recollection of the real world because he freshly "reincarnated " into the game.
I don't think that Bada is an npc. Rather, when he entered the game, it's been a long time already and the game itself may have affected his memory of the real world, but he doesn't know it or didn't realize it immediately which is why he can't remember beyond his life in the game. The longer he is there and the more rounds he plays and dies, the more he forgets and his memory becomes blurrier. Doha is perhaps a player like Bada but has entered the game much later which is why, when Bada played all these rounds, Doha didn't play much of a role in his progress, because Doha was still an NPC back then. But his NPC status changed cause that's when the Doha we know entered the game and he could possibly have recollection of the real world because he freshly "reincarnated " into the game.