Yasumi Aizawa is a main character in the yuri video game Aoi Shiro.
A student at Seijou Academy, Yasumi is delicate girl who is the manager of the kendo team. Although she doesn't have any particular illness, she has much less stamina than normal people, so she finds it difficult to partake in any strenuous exercise. On the other hand, she's extremely determined and diligent about her job as a manager, and she does her best to contribute to the team's success.
- She has a crush on Syouko Osanai which Momoko often makes fun of.
- She kissed Syouko on the lips.