The cold son didn't know when he had gone to sleep. When he woke up, he felt cold gusts on his body. When he had gone to sleep, the cold current came again.

After a few days of adaptation, he has basically mastered the law of weather change here. Of course, it is only a big law. For example, the law of weather change in the day and night is usually hot in the day, and cold currents will come in the middle of the night. It may suddenly rain heavily in the hot sky, but it is not his place for tornadoes and hailstorms. You can figure it out....