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— Momotarou, speaking to Gou Matsuoka.
|Also known as|| Japan's Legendary Sea Otter (by other swimmers he competed against)
Momo (by Rin) Momo-kun (by Nitori)
|Height||172 cm (5'8")|
|Weight||59 kg (130 lb)|
|Occupation||1st year High School Student|
|Affiliation||Samezuka Academy (currently)|
|Relatives|| Seijuro Mikoshiba (older brother) |
Momotarou Mikoshiba (御子柴 百太郎 Mikoshiba Momotarō) is one of the main supporting characters in the second season of anime Free!, Free! Eternal Summer. He is Seijuro Mikoshiba's younger brother and a backstroke swimmer, as well as the first year high student at Samezuka Academy. He is the "fearsome new face" his brother referred to.
Momotarou has red hair just like his brother, but in a messy and straighter fashion. His eyes are a golden yellow and he has a healthy slight tan complexion. He's around average height for a male his age, as he is shown to be taller than Nitori.
Momotarou is a happy-go-lucky guy who likes hanging out with girls a lot. He's very much like his older brother, Seijuro Mikoshiba, both in terms of swimming or personality. Just like Seijuro, he falls for Gou at first sight, saying that she's "pretty cute".
Momotarou claims he has won a ton of races back in middle school and that there's not a single person in his hometown who hasn't heard of him. When meeting Rin, Sosuke and Aiichiro for the first time, he stated that the swimmers he competed against used to call him The Sea of Japan's Sea Otter.
- Main article: Momotarou Mikoshiba/Plot
- Main article: Momotarou Mikoshiba/Relationships
Creation and Conception
- His hobby is hunting for stag beetles. The biggest one he caught was about 8 centimeters. 
- His favorite proverb is "Even Homer sometimes nods".
- His favorite dish is fried eggs.
- Momotarou owns a pink T-shirt with a boy coming out of a peach at the back. There's a story about an old couple who found a giant peach with a little boy inside, naming him Momotarou
- His favorite kind of spaghetti is vongole.
|Haruka Nanase • Makoto Tachibana • Nagisa Hazuki • Rei Ryugazaki • Gou Matsuoka • Miho Amakata|
|Chigusa Hanamura • Tadanori Sera • Male Teacher|
|Rin Matsuoka • Sosuke Yamazaki • Aiichiro Nitori • Momotarou Mikoshiba • Seijuro Mikoshiba • Shouta Nakagawa • Takuya Uozumi • Kazuteru Minami • Toru Iwashimizu|
|Goro Sasabe • Mr Tachibana • Mrs Tachibana • Ren Tachibana • Ran Tachibana • Mrs Tamura • Nanako Hazuki • Hayato Shigino|
|Kisumi Shigino • Aki Yazaki • Asahi Shiina • Ikuya Kirishima • Nao Serizawa • Natsuya Kirishima • Nii Satomi • Shota Yazaki • Tomo Yuzuki • Sakuyuki Narukawa • Riku • Kakeri • Kazu • Wataru|