Some of the events that Natsumi has appeared in are as follows.

2012 05.19	[11:00] Milky Holmes Live in Budoukan Zenyasai
2012 10.07	[15:00] Dengeki Bunko Aki no Saiten 2012 Main Stage Sakurai Sou no Pet na Kanojo
2013 03.24	[] Sakurasou no Pet na Kanoji Bluray/DVD event
2015 08.15	[12:00/14:00] IDOLM@STER Cinderella Girls 2nd Season event Animate Akihabara
2015 08.16	[14:00/16:00] IDOLM@STER Cinderella Girls 2nd Season event Animate Sapporo
2015 09.13	[16:30] Idolmaster Cinderella Girls "Shine!" event
2016 07.24	[14:30] Himitsu Kichi Koukai Himitsu Kaigi in Wonder Festival
2016 08.26	[] Animelo Summer Live 2016
2016 09.03	Idolmaster Cinderella Girls 4th Live TriCastle Story
2016 09.04	Idolmaster Cinderella Girls 4th Live TriCastle Story
2016 10.16	Idolmaster Cinderella Girls 4th Live TriCastle Story Saitama
2017 05.06	[11:00] Bushiroad 10th Anniversary Festival Hina Logic stage
2017 08.12	[] Idolmaster Cinderella Girls 5th Live Serendipity Parade Saitama Super Arena (day 1)
2017 10.21	[15:00] Fantasia Bunko Daikanshasai 2017 Grancrest Senki
2017 12.03	[14:30] Anime Hina Logic Finale Event
2018 03.24	[13:30] Anime Japan 2018 Grancrest Senki Special Stage
2018 11.10	[] Idolmaster Cinderella Girls 6th Live MetLife Dome (day 1)
2019 09.14	[12:00] Azur Lane 2nd Anniversary Fes. Day 1 Special Stage
2020 02.15	[] The Idolmaster Cinderella Girls 7th Live Tour Glowing Rock
2022 09.11	[14:30/18:00] Voice Lounge Channel Fan Kanshasai Event
2023 03.19	[15:00] Suzaki Aya no 7.6 Erai! Sugoi! Bangumi Goudou event
2023 03.19	[18:00] Erai! Sugoi! Bangumi event
2023 06.17	[13:00] Voice Lounge Channel Seiyuu to Oshaberi
2023 06.17	[16:00] Voice Lounge Channel Seiyuu to Oshaberi