Mina Yayoi  

, 弥生水奈

Mina is a first-year student who is one year younger than Sayuri and Tsukasa. She tends to be shy and quiet, which makes it difficult for her to express herself confidently. Despite this, she has developed a crush on Riku after meeting him at the library when she struggled to reach a book about dolphins from a high shelf. Mina is also an athlete, as she belongs to the school's swim team and commutes to school by bicycle. She has long blue hair that she wears in two ponytails.