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

2012 06.03	[15:15] Twinkle Team G & Tsukineko Live
2013 04.10	[17:30] The Idolm@ster Cinderella Master Onegai Cinderella event
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
2015 09.20	[11:30] Tokyo Game Show 2015 Konami Booth
2016 09.03	Idolmaster Cinderella Girls 4th Live TriCastle Story
2016 09.04	Idolmaster Cinderella Girls 4th Live TriCastle Story
2016 09.18	[15:30] Tokyo Game Show 2016 "Derby Stallion Masters" booth
2016 10.16	Idolmaster Cinderella Girls 4th Live TriCastle Story Saitama
2016 12.25	[14:00/17:00] MatsuIga Produce vol.1 DVD event
2017 04.29	[14:00] Matsu Iga Produce DVD Vol.2 event
2017 04.29	[18:00] Seiyuu Anizatsudan 1st Anniversary event
2017 08.12	[] Idolmaster Cinderella Girls 5th Live Serendipity Parade Saitama Super Arena (day 1)
2017 10.07	[20:00] Machi Asobi 19 Mausu Live
2017 11.05	[13:30/17:30] Matsu Iga Produce DVD Vol.3 event
2018 01.07	[] Battle Girl Fes at Saitama Bunka Center
2018 03.21	[] Mausu Doubutsuen BD Kinen Mystery Tour
2018 05.06	[10:30] Machi Asobi to Ayunda Mausu no Rekishi
2018 08.19	[14:30] Mausu Doubutsuen Key Holder Owatashikai
2018 09.22	[13:30/17:30] Matsu Iga Produce DVD Vol.4 event
2018 11.11	[] Idolmaster Cinderella Girls 6th Live MetLife Dome (day 2)
2018 12.01	[] Idolmaster Cinderella Girls 6th Live Nagoya Dome
2018 12.02	[] Idolmaster Cinderella Girls 6th Live Nagoya Dome
2019 07.21	[13:30/17:30] Matsuiga Summer Battle
2019 09.03	[] The Idolmaster Cinderella Girls 7th Live Tour Comical Pops!
2019 11.09	[] The Idolmaster Cinderella Girls 7th Live Tour Funky Dancing
2020 11.14	[17:00] High School Fleet talk event at Volks
2020 12.12	[19:00] Igarashi Hiromi Seitansai at Loft9 Shibuya
2022 03.12	[] Seiyuu Otazatsudan Talk Event 1 Bu
2022 03.12	[] Seiyuu Otazatsudan Talk Event 2 Bu
2022 09.11	[14:30/18:00] Voice Lounge Channel Fan Kanshasai Event
2023 02.12	[17:00] The Idolmaster Masters of Idol World 2023
2023 06.17	[16:00] Voice Lounge Channel Seiyuu to Oshaberi
2023 06.17	[19:00] Voice Lounge Channel Seiyuu to Oshaberi
2023 08.12	[15:30/18:30] Seiyuu Otazatsudan Talk Event
2023 12.09	[] Ijigen Fes Idolmaster Love Live Utagassen Day 1