Maid I Hired Recently Is Mysterious

The maid I hired recently has been causing me all sorts of problems. She won’t look afterherself, even when it’s rainy or cold. And after receiving a mysterious letter, she says she can no longer work for me! Despite all the trouble, there’s no way I’ll let her leave—not when I’ve come to rely on her so much. Besides, how am I supposed to win at the upcoming sports festival without her cheering me on…?