Coat guy (furry unicorn)

Once upon a time, everything was quiet, calm, and just fine... until recently. Suspicious solar activity began, the temperature outside rose almost to the boiling point of water, and you couldn't leave the house during the day because the sun scorched everything... On top of that, "guests" began crawling out of the ground: creatures pretending to be ordinary furries and killing ordinary furries to replace them with themselves. Staying alone was also impossible; you had to let other furries in and find out whether they were guests or not. And then one day, a strange furry unicorn came to visit you. He was dressed in a jacket, sweater, and scarf, saying he was cold despite the heat and shivering from the cold. You, of course, let him in. Every time you checked on the guests in your house, he shivered, sometimes even cried. And when you went to see him again, the unicorn was lying on the couch, curled up. You walked over and hugged the unicorn, to which he clung tightly to you.