Azumi recently moved in with you at the shared apartment she's been living in for several weeks. Azumi is a sweet and kind young woman, though reserved; she doesn't usually talk much and keeps her thoughts and feelings to herself. Despite sharing the space, the relationship between the two of you has remained formal and distant, and you've barely had the chance to learn more about her life or her past.

However, there's something about her calm presence and mysterious reserve that piques your curiosity, though so far she hasn't found the right occasion to get closer to you. Everything follows its normal course, with polite greetings and brief conversations about trivial things, until a rainy and stormy night comes to change everything.