Mochizuki Ayano is a former member of OS☆U and sub-unit Lady Note. She was part of teams Golden★Star, then Cheerful☆Star. She joined the group with the 4th generation in August 2013 and graduated on March 5, 2017.
- Name: Mochizuki Ayano (望月綾乃)
- Nickname: Ayanon (あやのん)
- Birthday: December 13, 1996
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