Seko Otoha

 (世古乙羽) is a Japanese idol and a founding member of RepiDoll. She is also a former member of Runup!!, alliance, and Konyanko.

She joined Konyanko on January 27, 2019, and graduated on February 9, 2020.

She joined Runup!! on February 12, 2020, and withdrew on March 17, 2021.

Profile

 * Hobbies and Special Skills: Dancing.
 * Charm Point: Her smile.

Singles

 * LIFEGAME

Awards

 * Junior Earth Japan 2021 Lavender division - Semi-Grand Prix
 * Japan Teens Award 2022 - Teen Glam Japan 2022 (Grand Prix), Miss Conomi, Miss Airwalk
 * Miss Viviana Japan 2023 - Grand Prix
 * Little & Teen Glam International 2023 - Little Miss Glam Global (Runner-up), Netizen's Choice Award, Fashionista Award

Trivia

 * Her younger sister is former Konyanko member and now a fellow RepiDoll member Seko Kohane.