Without any special treatment, we can understand each other and play together, but we can't forget it. Don't force it. As a southerner, I once lived with four northern classmates, and my living habits were very different. I am tortured by their loud voice, loud noise, nervousness, inability to take care of other people's feelings and not taking a bath every day (the university is in the south). They think I want to open the window for ventilation and love cleanliness. After living with northerners, I feel that my fantasy of finding a northern male ticket is shattered, not because the region is dark, but because it is purely irrelevant, you don't know.