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

1984 03.05	Miyuki Uchiage Party
1984 03.31-1983.04.01	[19:00] Saraba Bay Street play at Shinjuku Studio Jam
1984 07.27-1984.07.29	Kiss- Shichigatsu ha Diamond play at Theatre Daikanyama
1984 12.14-1984.12.16	Sayonara Christmas at Theatre Daikanyama
1985 02.11	2nd Nihon Anime Festival -Asakusa Anime Eiga Matsuri in Asakusa
1985 04.11-1985.04.14	Marine/Garasu no naka no Pink Dice at Theatre Daikanyama
1985 04.29	[11:00] Action Anime Special event at Kokusai Sports Fair '85 Haru
1985 05.31	[17:00] 1st Tokyo International Film Festival
1986 07.27	[13:00/15:00] "Touch" Variety Show at Kinkadou Ponte Yuukiten 1F
1986 09.12-1986.09.15	"Akuma no iru Christmas" play at Shibuya SK Studio
1987 02.07-1987.02.11	Actors Thrill & Chance 11th "Rain" at Shinjuku Theatre Tops
1987 02.14-1987.02.15	4th Nihon Anime Festival at Ikebukuro Sunshine City
1987 06.10-1987.06.14	Actors Thrill & Chance "Romantics Objet" play at Shinjuku Theatre Tops
1987 10.18	[16:30] Kimagure Orange Road Autumn Special Concert Hibiya Koukaidou
1987 11.01	[13:00/15:00] Animate Kashiwa 1st Anniversary Memorial Event at Animate Kashiwa
1988 01.07	Kimagure Orange Road event
1988 03.24-1988.03.30	Actors Thrill & Chance "feel/me" play at Shinjuku Theatre Tops
1988 07.23-1988.07.31	Actors Thrill & Chance 15th "EVOLVE Hruka yori anata wo aishitsuduketai" at Shinjuku Theatre Tops
1988 10.06	[18:00] Makai Toshi "Shinjuku" event at Ginza Gas Hall
1989 02.05	[14:00] Youma completion preview event at Tokyo Sabou Kaikan Hall
1989 02.25	[15:30] Youma completion preview event at Nagoya Higashi Betsuin Hall
1989 02.26	[14:00] Youma completion preview event at Osaka Midou Kaikan
1989 02.27-1989.02.28	[17:30] Rhea Gallforce event at Kudan Kaikan
1989 12.16	Kimagure Orange Road Mogitate Special event
1990 07.28	Gall Force Lady's Live at Nichifutsu Kaikan Shibuya
1990 08.22	Karura Mau event in Osaka
1990 08.24	Karura Mau event in Kudan Kaikan
1991 12.14	Gekkou no Pierce/Yuukan Club movie event in Ginza
1991 12.15	Gekkou no Pierce/Yuukan Club movie event in Sapporo
1991 12.21	Gekkou no Pierce/Yuukan Club movie event in Yokohama
1991 12.22	Gekkou no Pierce/Yuukan Club movie event in Morioka
1991 12.22	Gekkou no Pierce/Yuukan Club movie event in Sendai
1994 08.07-1994.08.08	GS Mikami Gekijou Koukai Kinen Mystery Bus Tour
1995 06.11	Sotsugyou Cross World All Stars On Stage
1995 07.22	Golden Boy in Tokyo
1995 08.13	Anime Seiyuu Daikoushin
1995 09.15	Game Music Festival
1996 05.19	EMU Live in Akasaka Blitz
1996 10.07	Shin Kimagure Orange Road
1996 10.12	Marriage event at Yamagiwa Soft
1996 11.02	Shin Kimagure Orange Road Soshite ano natsu no hajimari event at Shinjuku Toei Palace 2
1996 12.07-1996.12.15	Mitsu no jidai no monogatari
1997 07.22	Manatsu no Gakuensai at Shinjuku Island
1999 10.14-1999.10.17	Little Wing -Tetsukazu no sora- at Theater V Akasaka
1999 12.22-1999.12.25	Live a Combination 5
2000 06.16-2000.06.22	Mihatenu Yume at Theater Sun Mall
2001 04.07-2001.04.15	Dareka ga Dareka wo Aishiteru at Theater Sun Mall
2001 12.19-2001.12.23	Mihatenu Yume at Zenrousai Hall
2002 09.18-2002.09.23	Little Wing -Tetsukazu no sora 2002- at Theater V Akasaka
2003 09.09-2003.09.15	NAO-TA! Produce Vol.2 "DEAR -Garasu koshi no-" play
2005 02.19-2005.02.27	"Simple Review 2: Omnibus About Love" at Theatre Sun Mall
2005 03.06	[16:00] Sotsugyou Next Graduation event at Seiryou Kaikan
2006 10.04	[19:30] WAKU Produce Vol 11 "VS! Toriaezu Beer??" at Space 107
2006 10.05	[19:30] WAKU Produce Vol 11 "VS! Toriaezu Beer??" at Space 107
2006 10.06	[19:30] WAKU Produce Vol 11 "VS! Toriaezu Beer??" at Space 107
2006 10.07	[14:00/18:00] WAKU Produce Vol 11 "VS! Toriaezu Beer??" at Space 107
2006 10.08	[13:00/17:00] WAKU Produce Vol 11 "VS! Toriaezu Beer??" at Space 107
2006 10.09	[15:00/19:00] WAKU Produce Vol 11 "VS! Toriaezu Beer??" at Space 107
2006 10.14-2006.10.15	Taiki chan matsuri Vol 7 Hana mo Arashi mo Fumikoete Pt2
2007 03.28-2007.04.03	NAO-TA! Produce Vol 4 "REPLAY" at Theatre V Akasaka
2007 09.12	"Kono subarashiki sekai" play at Theatre Sun Mall
2007 09.15	"Kono subarashiki sekai" play at Theatre Sun Mall
2008 03.05-2008.03.09	Raiden Koushien play at Theatre Sun Mall
2009 02.24-2009.03.01	Special Playing Company Suzufune "Only You" play
2010 05.25-2010.05.30	"Taiyou no Ataru Basho" play Theatre Sun Mall
2012 07.17-2012.07.22	Dream Dan "Mani Mani"
2013 04.24-2013.04.29	Nao-Ta! Produce Vol.8 "Taisetsu na Kimi"
2015 04.18-2015.04.19	Nao-Ta! Produce Vol.8 Osaka Kouen
2015 07.17-2015.07.20	"Yoki senu dekigoto!" play at Shenny's Theater