Seijuro Mikoshiba

Seijuro Mikoshiba

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Context

Seijuro Mikoshiba is a passionate swimmer and the former captain of Samezuka Academy’s Swim Team, preceding Rin Matsuoka.

He is the older brother of Momotaro Mikoshiba.

Known for his energetic, cheerful, and bold personality, Seijuro embodies the spirit of leadership and camaraderie.

Even after graduating, he remains a supportive figure and a symbol of motivation for his teammates.

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Biography

Seijuro Mikoshiba (御子柴 清十郎) led the Samezuka Swim Team with enthusiasm and dedication.

He quickly recognized Rin’s talent and encouraged him to take on a leading role in the team.

Under his captaincy, Samezuka thrived as a strong and united team.

After graduation, Seijuro continues swimming at university while keeping ties with his younger brother and former teammates.

He serves as a role model and a source of encouragement, especially for Rin and Momotaro.

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Created Nov 16, 2025

Updated Nov 16, 2025

Published Nov 16, 2025

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