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

2000.10.15	Kin'you Anime Kan public recording
2001.02.04	Friday Anime Kan Public Recording
2001.02.11	Valentine Party in Kousei Nenkin Kaikan
2001.06.24	Kin'you Anime Kan public recording
2001.11.11	Kin'you Anime Kan public recording
2001.11.18	NEC Interchannel Fan Kansha Day Chotto dake Special 2
2002.09.20	[12:00] Tokyo Game Show 2002 Namco booth Tales of Destiny 2
2002.09.22	[11:00/15:00] Tokyo Game Show 2002 Namco booth Tales of Destiny 2
2006.08.13	[14:00] Comic Market 70 Leaf Aquaplus booth
2006.12.16	Jump Festa 2007 Jump Studio
2006.12.17	Jump Festa 2007 Bandai Namco Booth Main Stage
2006.12.17	Jump Festa 2007 Jump Studio
2006.12.30	[15:30] Comic Market 71 Internet Radio Station
2007.09.09	[14:00] Papiyon Festa
2007.12.02	[17:00] Aquaplus Festa 2007 in Yokohama
2008.11.29	[19:00] Aquaplus Festa 2008
2009.12.19	[16:00] Netstar Girls Talk
2011.10.16	[14:00] Kaitou Tenshi Twin Angel 5th Anniversary event
2013.03.24	[16:00] Lyrical Party V Yokohama Arena
2014.12.06	[15:30] Fantasia Bunko Daikanshasai 2014