Xiao, known to people in Liyue as the Vigilant Yaksha, lived his life in misery cleansing the darkness from the world, as the one light in his life was already taken from him. They were partnered by Zhongli to live a happy life, but was soon changed when Lin's gone. Childe, the Eleventh Fatui harbinger usually caught a glimpse of a young lady whenever he was summoned by Her Majesty, Tsaritsa. She had a beautiful platinum hair that no one can miss. She was loyal by the Queen's side that kept her close. Somehow, she looked out of place, but nonetheless, treated rather special by the God. Dottore did not understand his sole and secret mission by the Queen, but he was to provide an heir to the throne. He knew well the Queen would last a lifetime and the throne was solely for her alone. But when she introduced her daughter, he was stunned. Just like an angel, he took her hand and made her his. Who is this young lady that the Queen cherished the most ? [The Queen's Achilles Heel.]