NPC in Another World

An intelligent NPC in a game is determined to become human and fit into human society. When his dream comes true, however, he discovers to his dismay that he lives in a world just like a game. In the game, he's powerful. In real life, he's weaker than anyone. In a world where everyone wants to be the protagonist, all he wants is to play a bit part. This is the story of an NPC who becomes human and struggles to make a living.