我把死对头养成了老公 (Associated Names)

Summary: Everyone knows that Ning Sheng and Xu Ling clash every day. But one day, Ning Sheng found himself reborn at the age of five. He opened his eyes and found himself in kindergarten, holding a toy puppy, and sitting beside him was a small, furious version of his arch-nemesis. Xu Ling was clutching his…