Seeing the changes in his leg muscles, Hiro couldn't refrain himself from testing his newly obtained talent. Thus even at that late in the night, he started to jump and perform several leg exercises.
And for some reason, he even felt that he was jumping much higher than before. But since, he had never really recorded his jumps, he wasn't sure if his jumping power had increased.
"If only I have a ball with me right now, I could have tested my feel on the ball" Mumbled Hiro while heaving a sigh of disappointment.
Then again as if something perked inside him, he raised his head as he began to walk towards his table. He then took a notebook out of his school bag.
After that he began to tear some papers from his notebook. And as he tore quite a few paper from his notebook, he scraped one of the paper and began to roll it in a shape of a ball. Layering other papers over that small roll of paper, he made a paper ball about the size of a tennis ball.