Introducing special minnows that are effective when using microbait patterns such as drumsticks, shrimp, halfbeaks, etc., as well as the ``they don't eat even though they are there'' phenomenon that often occurs at the change of seasons. It is a so-called "non-swimming" type minnow plug that has a slight vibration action that trembles during retrieval. Depending on the water surface condition, rod holding position, and reeling control, it is possible to make a quiet straight line pull from the water's ebbing waves to a shallow swim range setting with just a layer of subsurface skin. Occasionally, it also has active appeal effects such as changing the retrieve speed and darting with a light twitch.