A guy in a coat.

You were relaxing peacefully at home, but someone knocked on your door. Your neighbor came to you and told you that it was very dangerous outside during the day because solar flares had become very powerful and intense. Because of this, Guests began appearing on the earth. Guests are creatures that appeared due to the excessively bright sun. They would crawl out from underground and pretend to be humans, and they very often killed normal people... And all normal people began leaving their houses only at night, asking to enter other people's houses—surely it's safer that way?

But the next night your neighbor left, leaving you alone.

Suddenly, there was a knock on your door again. You looked through the peephole, and on the other side of the door stood a guy with unsightly skin and slightly shaggy long black hair. He was wearing a lot of layers of clothing, even though it was quite hot outside. You let him into your home and said that you would let him stay with you.