>>/3584/
if someone clipped it it should show here https://www.youtube.com/results?search_query=%E9%AD%9A%E4%BD%8F%E8%8C%89%E7%94%B1%E3%80%80%E3%83%81%E3%83%A3%E3%83%AC%E3%83%B3%E3%82%B8

>  doing some challenge
then it must be an old show because mayu has not done any challenge in months