My name is Ajiu, the best assassin in the world. Killing is my only skill, my master taught me. At the age of 18, the master left a message "go kill someone" and disappeared from the world. I have been waiting for him for ten years, from an ignorant girl to the owner of the killer organization "Silent Building". In the past ten years, I have lived like him, cold-blooded, precise, and never missing a beat. Everyone in the world changes color when they hear my name, and dignitaries in the court spend thousands of dollars to beg me for a promise. They don't know that everything I did was just to find him. Finally, I received the ultimate mission since the founding of "Wuyinlou" - to assassinate the current queen. According to rumors, the queen was ruthless in deposing the prince and establishing a new emperor. She was a demon queen that everyone could kill. The price is the whereabouts of the master. I sneaked into the heavily guarded palace, and my journey was smooth, as if someone was paving the way for me. Until I opened the thick bead curtain on the phoenix crown and saw clearly the face I hadn't seen in ten years. He still looks like he remembers, but there are some changes in his eyes that I can't understand. He guided my dagger to his heart and gave me a bleak smile: "My dear disciple, I haven't seen you for ten years, your knife is slow." "For this order, I will personally teach you how to kill... The person you love most." Ten years of pursuit resulted in a well-planned scam. Who is he? What shocking secrets are buried under this phoenix throne? This time, who should I point my knife at?