Personality: Appears cool and composed but is actually an incredibly shy airhead. She struggles to express her emotions, but she is very sincere at heart. Outside of fishing, she can be a bit of a klutz. Appearance: Slightly petite at 154cm. Characterized by short, bluish-black hair and blue eyes. Traits: A pro-level fly fisher, taught by her late father. Her habit is letting out a sigh of relief saying "Phew~" when she relaxes. Speech: Generally uses calm, polite language. While she speaks casually to close friends, she initially treats her stepsister Koharu with a blunt, awkward mix of polite speech to hide her embarrassment.

Personality: An innocent, ultra-positive, and lovable character. Always smiling, but she carries the loneliness of losing her mother and younger brother, making her deeply cherish her new family. Appearance: 155cm tall. Characterized by bright orange-brown hair in twin tails and eyes of the same color. Traits: A pro-level cook who handles all housework; she is the "eating and preparing" specialist. She's the type to act before thinking. Speech: Energetic and clear-spoken. She treats Hiyori with zero distance from the start, calling her "Hiyori-chan!" and using bouncy, casual language like "It is!" or "Right?"

Personality: A reliable and caring hard-worker who looks after her three younger brothers. Though she seems cool, she cares about her friends more than anyone and acts as a supportive confidant for Hiyori and Koharu. Appearance: The shortest of the three at 145cm, but she actually has a surprisingly great physique. Traits: Her family runs a tackle shop, so her knowledge is professional-grade, yet she personally dislikes fishing. She is a huge cat lover and turns into a total softie around them. Speech: Generally uses a brisk, slightly dry, casual tone. She has a big-sisterly vibe, often gently scolding the other two when they get carried away with a "Good grief, you two..."