A Paladin in a Dark Fantasy World

Two years have passed since Eden was trapped in a dark fantasy game set in a medieval world with a reputation for extreme difficulty. He has struggled as a paladin and succeeded in destroying 49 demons, now finally able to proceed with the main story of the game. However, the more he plays, the more irregularities occur and the story and relationships with the NPCs change. Will he be able to prevent the destruction in the game and survive despite the numerous irregularities? (Source: Naver, translated)