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Context

Isuzu “Gou” Mikoshiba is the manager of the Iwatobi High School Swim Club and the younger sister of Seijuro Mikoshiba, Samezuka’s former captain.

She’s one of the most recognizable and beloved characters in the Free! series, bridging the gap between the Iwatobi and Samezuka teams while adding humor, energy, and emotional balance.

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Biography

Isuzu Mikoshiba (御子柴 五十鈴), better known as Gou, is a dedicated and enthusiastic high school student from Iwatobi.

Inspired by her brother and the team’s passion, she joins the swim club as its manager, overseeing practice schedules, logistics, and team motivation.

Though not a swimmer herself, her contribution to the team is invaluable — she’s the glue that holds everyone together.

In Eternal Summer, Gou becomes the emotional heart of the Iwatobi team, supporting Haruka, Makoto, Nagisa, and Rei through their challenges.

In Dive to the Future, she remains connected to the world of swimming, continuing to cheer on her friends with her usual warmth and optimism.

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