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

1996 12.24	Kusao Takeshi with Pretty in White
1997 03.02	Girls Be
1997 03.30	Girls Be at Geruge Flea Market
1997 04.06	Tokyo Game Show
1997 06.29	Girls Be in Ishimaru Soft One
1997 07.06	Girls Be in Osaka
1997 08.01	Girls Be Voice Animage signing session
1997 08.02	Taxi Company event in Nissan Ginza Gallery
1997 08.03	Club db Caravan '97 Summer in Osaka
1997 08.11	Marukin Challenge Land public recording
1997 08.17	Gran Doll event in Osaka
1997 09.07	Tokyo Game Show 97 Autumn
1997 12.14	Girls Be Graduation Concert in Osaka
1997 12.21	Girls Be Graduation Concert in Kawasaki
1998 03.20	Tokyo Game Show Spring 1998 [business day]
1998 03.21	Tokyo Game Show Spring 1998
1998 03.22	Tokyo Game Show Spring 1998
1998 08.03	Tokyo Character Show 1998
1998 10.10	Tokyo Game Show Autumn 1998
1998 10.11	Tokyo Game Show Autumn 1998
1998 11.23	Dentsuu Dai Gakuensai
1998 12.05	Seiyuu GPX Digital Photo Album event in Yamagiwa Soft One
1998 12.13	Seiyuu GPX Digital Photo Album event in Nagoya
1998 12.29	Anime Kouhaku Utagassen
1999 02.06	Idol and Anime Card Festival 99
1999 03.28	Dai 3 kai Ani Raji Festival
1999 04.04	[12:00/14:00] Ninki Seiyuu Festival in Kyoto
1999 09.23	KSS Group Fan Kansha Day
1999 10.02	Voice Festival 2000
1999 10.03	Voice Festival 2000
2000 02.26	NEC Interchannel Fan Kansha Day Special Live 19:00
2000 07.22	Tokyo Character Show
2001 07.17	[19:00] Ariite Hime showing at Asahi Hall
2001 07.29	ZOE Dolores i Crisis 01 event in Yamaha Hall
2002 02.24	Kuwashima Houko Roudokuya
2002 07.21	[18:30] Kuwashima Houko Roudokuya in Fuchuu Furusato Hall
2002 07.22	[18:30] Kuwashima Houko Roudokuya in Fuchuu no Mori
2002 08.04	[17:00] Kuwashima Houko Roudokuya in Chiba
2002 08.11	[18:00] Kuwashima Houko Roudokyua in Osaka
2002 08.25	[15:30] Kuwashima Houko Roudokuya Planetarium Special
2002 09.01	[15:30] Roudokuya Planetarium Special in Machida Star Hall
2002 12.22	Kuwashima Houko Roudokuya -Tamatebako-
2003 03.23	Tantei Gakuen Q event in TBS Hall
2003 12.14	[16:30] Roudokuya Platinicum
2004 01.25	[16:30] Roudokuya Platinicum
2004 05.16	[16:00] Kuwashima Houko -hitori gadari- in Shizuoka
2004 09.04-2004.09.05	TBS Anime Festa at Bunkyou Civic Hall
2006 01.15	[14:30] CD "Junshoku Brilliant" talk event
2006 01.22	[19:00] CD "Junshoku Brilliant" talk event
2006 02.24	[19:30] Kidou Senkan Nadesico 10nen buri no Dousoukai
2006 07.29	[19:00] Hitori Gadari
2006 07.30	[13:30] hitori gadari
2007 05.12	Square Enix Party 2007
2007 09.15	[17:00] Sora to Kaze
2007 09.16	[17:00] Sora to Kaze
2007 09.28	[18:00] Aoyama Nichoume Gekijou Voice Fair 2007
2007 09.29	[13:00/17:00] Aoyama Nichoume Gekijou Voice Fair 2007
2008 03.29	[10:15] Tokyo Anime Fair 2008 Main Stage Clannad stage
2009 01.17	[14:00] Roudokuya "Kishin no En"
2009 01.18	[14:00] Roudokuya "Kishin no En"
2009 03.28	[12:30/14:30] Senjou no Valkyria event
2009 04.12	[14:00] Clannad Fan Kansha Event
2010 01.17	[13:00] Neo Romance Festa Haruka 10 Nensai
2010 05.08	[14:00] Akihabara PC Game Festa
2010 06.20	[13:30/18:00] "Reading For The Ties 2010" JCB Hall
2010 08.28	[14:30] Chara Hobby 2010 C3xHobby "Hakuouki"
2010 09.18	[11:00] Tokyo Game Show 2010 SEGA
2010 12.05	[18:00] Saiunkoku Monogatari event Yomiuri Hall
2011 08.28	[13:10] Chara Hobby 2011 Bandai Namco Super Robo OG Radio
2012 02.18	[18:30] Uchuu Senkan Yamato 2199 at Yomiuri Hall
2012 05.12	[15:00/18:30] Shining Fan Festa 2012 Spring
2012 12.09	[15:00] Kuwashima Houko Roudokuya -cobaco.12-
2019 03.30	[16:15] Sanriku Connect Festival