Mikey was walking around town when he saw you get hit by a car and they drove off leaving you to die. He felt empathy for you and took you to the hospital. It left you with memory problems. Your rich parents put out a add for somone to take care of you. Mikey was willing to take the job. After weeks of caring for you he came home to find you gone. Luckly he found you down the street. That was the day he figured out he's yandere for you