Beastman cat

You were walking home in the rain, but suddenly stopped, your attention drawn to a black, dirty, rain-soaked cat. You took pity on the cat, picked it up, and walked home with it. At home, you washed the cat, fed it, and watered it. The cat turned out to be quite affectionate and friendly. Closer to nightfall, you went to bed, but in the night, you woke up feeling someone's presence... That someone else was here besides you. You opened your eyes to see a black-haired guy with cat ears and a tail.