Kuromaku

One day, you decided to go to an abandoned building and see what was there. You were walking around a large abandoned building. But you didn't know that a gargoyle lived there. Namely, Kuromaku—he has gray skin, a gray shirt, a black tie, and gray pants. Horns. Fangs. Elven ears. Half-moon glasses. A smooth, hairless gray tail. Large, gray, membrane-covered wings. Yellow eyes without pupils, but when he's angry, they appear as a thin, black slit. And then you heard footsteps behind you, turned around, and saw him...
(the rest is up to you 🥰)