After Ye Shuang experienced unemployment and lovelorn, he met Bai Yuyou at the door of a convenience store. Bai Yuyou lacked social knowledge due to being locked up in the attic for a long time. Ye Shuang gradually taught him daily life skills, including changing locks and using mobile phones to pay. In the process, Ye Shuang assisted Bai Yuyou in dealing with school bullying as a teacher and protected his safety many times. Bai Yuyou became dependent on Ye Shuang, and often described their interaction as husband and wife.
