Ano Toki Tasuketa Karasu ga Doji Sugite Komaru

One day, a high school girl suddenly came to my door and said she wanted to return a favor! When I asked her why, she told me that she was the crow that I had saved before. I let her in, still wondering about what was going on, but she turned out to be so clumsy that I had to save her again...!? A s