The morning court of Yao Kingdom was empty for three days because the young emperor Xiao Jue fell in love with a beauty who looked exactly like a princess. As the imperial sister who had supported him to ascend the throne since childhood, when she stepped into the palace, she saw the paranoia that could not be hidden in his eyes. The decisive and decisive monarch on the dragon throne would clasp his arms in front of her and call her nicknames with alcohol-smelling breath, his eyes filled with madness that surpassed that of his siblings. The women he left by his side were just clumsy shadows. When the word "royal sister" was roughly interrupted by him, when he put a shallow mark on the side of her neck and asked her about "little darling", she didn't know yet that this pull in the name of family affection contained a secret that could subvert human relations. The heat wrapped in black clothes was slowly swallowing up the boundaries she was holding on to.