Quick Travel: the Heartthrob Bound to the Childbirth System

(Quick travel + child birth system + no fixed cp + cool writing + heartthrob) Yu Zhaozhao is the only fox demon in the Fox clan with the bloodline of the nine-tailed fox. After practicing for thousands of years, he has never been able to ascend to immortality. Until one day, she was inadvertently bound to a childbirth system, which required her to travel to female partners in other small worlds to give birth to children for male protagonists or male partners who were having trouble having children. After completing the task, she could easily ascend to immortality. As soon as she heard about this good thing, she immediately went to the small world. 1. The divorced cousin from the Duke's palace* The middle-aged emperor who has difficult heirs 2. The fake daughter of a noble family* The cold and ascetic prince 3. Charming and scheming beauty* childless scientist in the 1980s Other worlds to be determined...