An unprecedented naviki-type shape that is effective for flat fish and rock fish that live near the bottom. The velvet star, which is a standard for aging, has been increased in size and has a ball-shaped bulge in the middle of the tail that receives water well. As a result, an exquisite navigating feeling is realized and it becomes a way to eat in the surf and rock areas. It is expected that the target will be expanded in the future by responding to various actions such as lift & fall and swimming.