安田 瑞希

A first-year student at Reiki Girls' Academy.

A promising young star in the world of swimming and diving, she enrolled on a sports scholarship and is aiming to compete in the next Olympics.

Her mother and two older brothers run a snack bar at home.

Her mother's snack bar isn't very popular due to the current economic downturn, and she has no clear future, so she chose Reiki Girls' Academy because of its tuition exemption and scholarship program (although she actually had another school she wanted to go to).

Since she was raised mostly by her older brother, she uses masculine language, is quick to get carried away with her emotions, and says harsh things straight to the point, so she makes enemies easily.

In fact, quite a few of her classmates dislike Mizuki, but because she's always with Haruka, they don't openly treat her badly.