Some of the internet that Mayumi has appeared in are as follows.

2001.03	Chara Ani Night [radio]	host
2001 03.02-2001.03.23	Strawberry Room [radio]	host
2001.12	Chara Ani Night	host
2001 12.07-	Strawberry Room 2	host
2015 07.16	Denjin Gacha	guest
2016 04.28	Denjin Gacha	guest
2017 08.24	Denjin Gacha	guest