|Morning Musume '15 Sayashi Riho Sotsugyou Memorial|
|DVD by Sayashi Riho|
|Released||December 7, 2015|
Morning Musume '15 Sayashi Riho Sotsugyou Memorial (モーニング娘。'15鞘師里保卒業メモリアル) is a special graduation edition DVD by Morning Musume '15 member Sayashi Riho. It was released on December 7, 2015 as merchandise for the Morning Musume '15 Concert Tour Aki ~PRISM~. A visual book was also released.
The DVD features Sayashi Riho in one day, from when she wakes up, puts on make-up, and eats. Also included is a long interview discussing "now" and scenes of her having fun in Yomiuri Land.