It's has been a long time ago, but in the summer of 1998, I had the first flogging experience of my life in Delta, California, USA. I used a tournament frog to teach the basics of frogging to a friend who was also a professional staff of snag proof. It was a shocking event for me. It's no exaggeration to say that this moment has drastically changed my life. After returning to Japan, I threw tournament frogs. The more I threw, the more I got into this type of fishing. At the same time, there was no Japanese-made frog with a double hook on the market at the time, and my dissatisfaction with the hookup rate gave me a strong feeling that I could make a better frog.