C81 Grandfather's Surprise

In fact, vivien had wanted to try it himself when he saw his grandfather freely shuttling back and forth in the sandbag! Coincidentally, his grandfather wanted him to give it a try. Vivien impatiently walked into the wooden stake.

Vivien adjusted himself a bit, then copied Ryan White's method. He began to lightly tap the sandbag with his hand. When the rubber band started to fly