Momoko Orizuka  

Zuka, 織塚 桃子

A third-year student who serves as vice-captain of the swimming team has discovered Amuro's hidden talents after meeting her. Impressed by her speed in the water, she challenges her to a match and eventually recruits her to join the team. As the fastest front crawl swimmer on the team, Amuro is also known for being an extremely dedicated competitor, though sometimes her obsession can get the best of her.