Gu Nianxing was abandoned outside and adopted by the billionaire Pei family, becoming their beloved little princess. At the age of twenty, she was recognized by her biological parents from the Gu family and brought back home, only to be disliked by everyone. Her biological brother, Gu Chengyu, bluntly declared that Gu Nianxing could never replace Gu Qiuqiu, the fake heiress. However, Gu Nianxing, who had loved food since childhood, had always longed for an older sister who could cook delicious meals for her. After learning that Gu Qiuqiu could cook, Gu Nianxing immediately chose to acknowledge her as her sister rather than her biological family. To hell with the schemes and competition for favor between the real and fake heiresses! All she wanted was a gentle older sister by her side. From then on, Gu Nianxing became like a little sun, bringing warmth and healing to Gu Qiuqiu. Gu Qiuqiu, who had been timid and accustomed to compromising since childhood, finally opened her heart and began living life on her own terms.