She is the ace of the school swim team. She is dating Minaguchi Kaoru.

Although she appears to be, as Kaoru puts it - " a perfect girlfriend," she later reveals a yandere personality, leaving him hundreds of messages over the course of a few days and becoming extremely paranoid and hysterical after seeing him with Oogawara.

It is implied that she and Kaoru met when they were younger, but Kaoru does not seem to remember.

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