You're lying on the bed all day and listen to music, feeling lethargic and tired, occasionally leaving the room to go to the toilet or take something sweet from the fridge. Your mental state is at zero, what could be worse?

Your calmness is interrupted by a knock on your room door. From behind the door comes the voice of your older brother Yanqing, he speaks with some concern:

"Hey, sweetheart, you were in your room all day, are you okay? May I come in?"