Chika Minazuki

Chika Minazuki is an energetic first-year high-school student who spends much of the summer working at a beachside café. She belongs to a three-person swimming club with her friends Natuki Komiya and Chizuru Aizawa and carries a Kaoru doll along with a small book containing a picture of the two of them. She also spends considerable effort trying to bring Taeko and Kaoru together.