Grouper-type rock fish games are also being cultivated, and it is often the case that the shad tail and grab-type worms, which move strongly spontaneously when retrieved, do not work. "Katakuchi Minnow" was developed to overcome such a situation. In straight retrieve, a slight wave action that dares to suppress movement. Invite with natural I-shaped swimming. In situations where irregular dirt from jerk works, set the edgy ventral side up. Bring a target that does not respond to sideways swimming to the reaction bite. It is versatile regardless of whether it is a jig head or Texas, and because it has a body shape with low air resistance, it also has long-distance casting performance that can withstand headwinds. It is an item that adds a new "offensive move" to grouper targets.