Nitori-chan is facing a severe shortage of funds for research and development. She decided to make a fortune by creating equipment that would enable her to run faster for non-flying yokai, slow-moving yokai, and humans. The idea came to Nitori-chan, and within a few days, she had completed a set of equipment. It would be a problem if the equipment was not fast enough, and if there was an accident, it would be very difficult to deal with the claims. Before going to the market, let's do a careful test drive first.