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