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

1996 04.21	Ninja Mono event in Tokyo
1996 05.04	Emotion Festival 2 in Tokyo
1996 05.06	Emotion Festival 2 in Osaka
1996 11.03	Seiyuu Collection
1996 11.04	E3
1997 01.11	Emotion Festival 1997 in Suginami Koukaidou
1997 01.19	Emotion Festival 1997 in Osaka
1997 06.21-1997.06.22	Mahou Tsukai Tai tour
1998 10.11	Tokyo Game Show Autumn 1998
1998 10.17	Yume de Aetara event
1999 01.17	Kakikuke Kikuko no Sasisuse Sonata public recording
1999 03.21	Tokyo Game Show Spring 1999
1999 03.28	Dai 3 kai Ani Raji Festival
1999 05.02	Emotion Festival '99 in Sapporo
1999 06.27	Digi Chara Festival II