[Animation] Otto's training (Pixiv Fanbox)

Otto need to train for his next dodgeball match! And Mina offered to help XD FullHD with sound: https://mega.nz/file/xqonhRTI#ooX481uaGX6dFAf6aW5LhOPV6rSZt9EfltFghCOHvuM