After choking to death on a watermelon, Rong Jiahui thought that she would enter the netherworld and be reincarnated. But when she opened her eyes, she discovered, to her very horror, that she had returned twelve years into the past… Looking at the beautiful and awkward big brother that would be conferred the title of General in the future for outstanding military service, she almost let out a snort of laughter. She firmly decided to hug this big brother’s thigh and climb to the top of her life! It was a beautiful plan, but it had just one problem. Why had this big brother… suddenly turned into… A big sister…