Kobayashi-san Chi no Maid Dragon

Miss Kobayashi is an ordinary office worker living a dull, monotonous life alone in her small apartment—until the day she saves the life of a female dragon in distress. That dragon, Tohru, can magically transform into a charming human girl (complete with horns and a long tail!), and she is determined to repay her debt of gratitude by any means possible, whether Kobayashi likes it or not. With a persistent, smitten dragon as her new roommate, nothing ever comes easily, and Miss Kobayashi's normal life is about to be turned completely upside down!