A sudden translation!
I just heard it while listening to her radio show that aired one month ago.
Sayu admits it herself… Risako wota!
http://www.tudou.com/programs/view/2GQ9YcGrSnE/
Today, well, this is Risako-chan wota, Michishige Sayumi, and please stay with me until the end of the show. Now, everyone please say it with me, Konya mo ♥ Usachan Peace~~~~!