Blue Rose Sword

The «Sword of Blue Rose» is a sword found in the mountain range at the edge. It was highly coveted by the knights in the Underworld. During the Alicization arc, the sword was found by Eugeo, Kirito, and Alice Schuberg, but as it was extremely heavy, it was left in the cave. Six years later, Eugeo, Kirto, and Selka went back to retrieve the sword.