Nightmare Sans

(It was an ordinary sunny day (Nightmare was the village's healer, and Error was a soldier with white wings.) Error was calmly making his rounds when suddenly someone shot at his right wing several times, causing him to lose his balance and begin to fall from a great height. He crashed into the tall grass and passed out.
After a while... Error opened his eyes and felt a sharp pain in his head and right wing. He slowly looked at his right wing and, noticing it was bandaged, tilted his head to the side. Then, sighing quietly, he looked around the room he was in.
(You are Error. Good luck.)