Makoto Ohno, a second-year high school student, serves as an indispensable member of the Breakwater Club, renowned for her mastery of fishing techniques and encyclopedic understanding of marine ecosystems. Her tall frame, paired with reflective glasses and a perpetually worn yellow life jacket, creates a distinctive silhouette during club outings—the life jacket a nonnegotiable safeguard against her paralyzing fear of deep water, rooted in a childhood plunge into the ocean. This phobia starkly contrasts her upbringing as the daughter of a fish market owner, which cultivated both her precision in seafood preparation and a culinary finesse she regularly applies to transform the club’s catches into meals.

Quietly observant yet innately nurturing, Makoto provides steadying support to her peers, her composed presence countering the group’s livelier energies. Though reserved, she exhibits unwavering patience when sharing her expertise, such as instructing Hina Tsurugi in fish handling and filleting. The opaque lenses of her glasses, masking her gaze, lend an air of aloofness that dissolves upon interaction, revealing a warmth that anchors her relationships.

Her incremental battle against hydrophobia unfolds through deliberate steps, including a structured swimming lesson in a reinforced life jacket—an endeavor showcasing her resolve to navigate her fears without abandoning her passion for the club. This tenacity mirrors her pragmatic approach to group dynamics, where she meets Yuki Kuroiwa’s playful antics with measured tolerance, tempering chaos with quiet composure.

Rooted in her father’s trade, Makoto’s proficiency spans fish species identification, gear selection, and the *Shinkei-Jime* technique, a swift, humane method of preparation that once unsettled peers despite their admiration for her skill. Her hands-on knowledge, seamlessly blending academic understanding with tactile experience, underscores her role as both a technical authority and a bridge between the ocean’s bounty and the club’s communal table.