Meat Pigeon Game: I Can Improve My Free Attributes

At the other end of the universe, on a planet that was almost the same as Blue Star, a mysterious spire fell from the sky, and countless seven-color cards flew for a while. Some curious people picked up various cards, and the moment they picked them up, they all disappeared. It wasn't until a year later that people came out of the tower one after another, bringing news about the spire and cards to the world. Since then, the era of meat pigeons has begun...