2020 Happenings
- 6 graduations
- 7 left groups
- 2 retirements
- 1 ex-leaders
- 1 disbanded groups
March 2020
- 22 Murota Mizuki leaves ANGERME
- 22 Murota Mizuki leaves Hello! Project
- 30 Hirose Ayaka leaves Kobushi Factory
- 30 Nomura Minami leaves Kobushi Factory
- 30 Inoue Rei leaves Kobushi Factory
- 30 Hamaura Ayano leaves Hello! Project
- 30 Nomura Minami leaves Hello! Project
- 30 Wada Sakurako leaves Kobushi Factory
- 30 Hirose Ayaka steps down as leader of Kobushi Factory
- 30 Kobushi Factory disbands
- 30 Hamaura Ayano leaves Kobushi Factory
- 30 Wada Sakurako retires from show business
- 30 Hirose Ayaka leaves Hello! Project
- 30 Wada Sakurako leaves Hello! Project
December 2020
- 9 Funaki Musubu retires from show business
- 28 Ogata Risa leaves Hello! Project
- 28 Ogata Risa leaves Tsubaki Factory