The heroine Leng Ruofeng used her blood to open the sealed necklace, and accepted the task given to her by the hell messenger Xingfeng. Just because she was the descendant of the hell girl, just because of her aloofness... She found the six sisters on the Internet. The contract time set by Ruofeng was one year and one month, but the contract time with the six sisters was one year. There was still one month left. Ruofeng wanted to be alone... And the six sisters took care of her, and her cold heart finally felt a little warmer. Ruofeng not only wants to live a normal life with the six sisters, but also wants to eliminate all the resentment in the world. And Ruofeng met him at the destined time... He, the male protagonist Lin Yanchen, volunteered to become her attendant, just because it was her smile when they first met... From then on, a series of stories happened...