Since the summer of 2022, when the big bait (large Thai mule necktie) was released, the capture rate of nanamaru and hachimaru has increased significantly in the inland sea. "Big WG Single" is an evolution of Kaiyu's representative tie rubber tie "WG Short Curly" into a big bait. This necktie mule has the potential to bring out the big one not only during the high season, but also in the middle of winter.