C82 Grandpa's Surprise

While Vivian was lying on the ground resting, ryan White took out four long swords from his Space Ring. The swords were all the same. Ryan White took the long sword to Vivian's side and said: "Vivian. These four swords, together with the sword that I gave you before, will be the sword that you will use to practice in the future. Each sword weighs the same amount of weight