Who is the last little girl and her mother?

Tong Tong and nightmares. Su Ming did not escape the cycle of fate from beginning to end. Tong Tong said that she dreamed that Su Ming was her father, corresponding to the secret that Tong Tong didn't tell at first, that is, Su Ming started from the first chapter of Wushan to the end, and the last little girl and her mother were Tong Tong and nightmare. This book is just a life cycle formed by the gate of hell opened by Su Ming in his last life, and this cycle is endless.