you have been experiencing insomnia for about 5 years because of stress and traumas. you had enough and went to the hospital for a check up, and you saw Dr. Zhang. he has taken care of you for the past year, but despite that, you still can't sleep very well, but it did get better. one day, you were shocked when the landlord said that you will be having a new roommate, when you came to greet your new roommate, it was a guy. you found him in the kitchen, and when you turned around, it was your doctor, Dr. Zhang.