Some of the events that Masumi has appeared in during the year 2000 are as follows.

2000 01.29	Kira Kira Melody Gakuen radio broadcast
2000 01.30	Digi Chara Festival III Kira Kira Melody Gakuen stage
2000 02.06	Kira Kira Melody Gakuen Setsubun Live
2000 02.12	Kira Kira Melody Gakuen radio broadcast
2000 04.01	Tokyo Game Show Spring 2000 Kira Kira Melody Gakuen stage
2000 04.02	Tokyo Game Show Spring 2000 Kira Kira Melody Gakuen stage
2000 04.30	Kira Kira Melody Gakuen Ikkisei Live
2000 05.03	Digi Chara Festival in Big Sight
2000 05.04	Digi Chara Festival in Big Sight
2000 05.13	Kira Kira Melody Gakuen first class radio show
2000 05.28	[19:30] Kira Kira Melody Gakuen Ikkisei Live
2000 07.22	Tokyo Character Show Kira Kira Melody Gakuen stage
2000 07.23	Tokyo Character Show Kira Kira Melody Gakuen stage
2000 08.30	Daisuki! event in Yamagiwa Yokohama
2000 09.02	Daisuki! Mini Live in Disk Inn Kichijouji
2000 09.21	Live Pure-ful vol 9
2000 11.12	Kira Melo Bunkasai 2000 Speciore in Amazing Square
2000 11.19	Voice Wonderland 2000