2023 Happenings
- 4 graduations
- 4 left groups
- 2 ex-leaders
April 2023
- 2 Asakura Kiki leaves Hello! Project
- 2 Asakura Kiki leaves Tsubaki Factory
November 2023
- 6 Kishimoto Yumeno leaves Tsubaki Factory
- 6 Yamagishi Riko leaves Hello! Project
- 6 Kishimoto Yumeno leaves Hello! Project
- 6 Yamagishi Riko steps down as leader of Tsubaki Factory
- 6 Yamagishi Riko leaves Tsubaki Factory
- 29 Fukumura Mizuki leaves Hello! Project
- 29 Fukumura Mizuki leaves Morning Musume｡
- 29 Fukumura Mizuki steps down as leader of Morning Musume｡