Harada Mayu was a member of Kanji Keyakizaka46.
- 2015.08.21 - Joined Keyakizaka46 as Kanji Keyakizaka46 1st Generation members
- 2015.11.11 - Withdraw from Kanji Keyakizaka46 1st Generation
- Audition song: Shiosai no Memory (Koizumi Kyoko)
- Favourite Nogizaka46 member: Akimoto Manatsu
- Shares her birthday with Akimoto Yasushi
- Graduated on November 11, 2015 after pictures surfaced of her with her boyfriend when she was 16, who was her former middle school teacher
- Is now a member of YURiMental, under the name Aono Mayu (青野まゆ)