- Name: Hiraga Sakino (平賀咲乃)
- Birthdate: March 20, 1997
- Birthplace: Tokyo, Japan
- Hobbies: Piano (18 years), video editing, collecting smartphone cases
- Specialties: English, improv piano
- Education: Seisen University (Department of Global Citizenship)
- Up-Front Groups:
- College Cosmos (2018–2019)
- She was a finalist of MISS COLLE 2017.
- She graduated from College Cosmos on October 31, 2019.