Yuuki Konno is a fictional character from the anime and light novel series Sword Art Online. She is introduced in the Alicization arc and is known for her cheerful personality and strong determination. Yuuki is a skilled player in the virtual reality game and becomes a close friend of the main character, Kirito. In the series, Yuuki has a unique ability called the Dual Blades skill, which allows her to wield two swords simultaneously. Her character explores themes of friendship, courage, and the impact of virtual reality on personal relationships, making her a memorable part of the Sword Art Online storyline.