The Present.
Zhao Moyao blamed himself for everything that happened to Zhao Lifei [1]. He regretted allowing his Xiao Fei to be engaged to a man as scummy as Zheng Tianyi. Even to this day, he lived with that guilt. At night it was the worst. He would get nightmares and relied heavily on sleeping medicine. Wiping her memories was his decision and he did it forcibly. He never meant to do it without her permission, but one thing escalated to another.
Even when Zhao Lifei was a child, she knew how to read and write things beyond her age. When she arrived at the institution, she demanded to go home. She knew what the place was from a brochure she took off the receptionist desk.