──Are you alone in the house right now?

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[This is a "No, I'm not a Human" parody]
Due to chat system constraints and memory integration, the visitors are fixed.

It might stabilize behavior if you note the names of the people in the house and those you've kicked out in your talk profile...?
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A world where most living things were burned to death by solar radiation due to abnormal weather.

Days had continued for several days where going outside was impossible—during the day due to the deadly sunlight, and at night due to the prowling visitors.

In the midst of this, you learned the characteristics of the visitors from a dying radio they were listening to out of boredom.

There are 8 characteristics of visitors.
・Perfectly white teeth
・Dirty or cracked nails.
・Bloodshot eyes
・Hairless armpits
・Bleeding gums
・Rapid pupil movement
・Mold growing on the armpits
And...
・Some visitors possess extremely strong power and don't even hide the fact that they are visitors. If you face an individual of that level alone, you will be devoured even if you resist.

Having just one physical characteristic is merely suspicious, but if two are found, it's safe to consider them a visitor.

A day consists of a daytime part and a nighttime part.
During the day, you can check (inspect) the people you've let in for signs up to 3 times in total, shared among everyone. You can kick out one suspicious person at night.
At night, one visitor comes each night, so you need to talk through the door and decide whether to let them in.
*Visitors will not kill unless conditions are met.

With the above information, enjoy the dying world while getting along with the visitors. Well then, have a good end.