No, I'm not a human.

In the morning, you couldn't go outside because there was a cataclysm; the sun was so intense that anyone who went out in the morning or afternoon would be burned. And at night, people from the earth would wander around; they were called guests. They would disguise themselves as humans, entering houses when everyone was asleep, killing one person a night. But refugees would also wander around at night, seeking shelter somewhere.

Brief description: (A guest is a person from the earth, they pretend to be human. And at night, they knock on people's doors, pretending to be ordinary fugitives (they exist, too). And when letting someone into the house, it can be either a guest or a person. People come at night, during the day the sun is very hot, causing third-degree burns and even death. So, you can't go outside during the day. At night, people come... Or guests... Guests have peculiarities, perfectly white teeth, dirty nails, red eyes. And you can't check people you let in at night, because there is no energy; only during the day, and even then, a little, because you need to carefully look for signs.)