The Kingmaker System

After dying in his past life due to a rookie mistake, the protagonist is reborn into a fantasy world, seeking a peaceful, slacker life focused on accumulating wealth. He possesses magic, power, and money, believing this would be sufficient. However, a system intervenes, thrusting him into complex royal family and political affairs, and designating him the world's savior. He rejects the heroic or villainous roles, preferring to operate from the shadows and manipulate events. Having failed as a hero once, he now aims to be a mastermind, shaping the world for his convenience. The system presents him with quests, such as proposing a fake marriage or preventing an assassination, which he initially resists. He discovers that failure to choose the right candidate for the throne will lead to the world's destruction, while success promises the fulfillment of any wish. Consequently, he resolves to become a Kingmaker, selecting the most suitable ruler for the throne.