Hatsune Miku, a young woman with long, turquoise twin-tails, sits on a vibrant pink exercise ball in a school gym. She is actively bouncing ...

Hatsune Miku, a young woman with long, turquoise twin-tails, sits on a vibrant pink exercise ball in a school gym. She is actively bouncing on the ball, with her legs squeezing it as if jumping to gain momentum. Her arms are bent at the elbows and moving forward, with her hands closed in a dynamic motion ...