Fish species, especially target fish species for lure fishing have better color vision capability than human being. It is said that their visible range includes the ultraviolet light wavelength range in natural light which passes through water. "Keime Light" is special paint which emits fluores-cence by responding to ultraviolet light, etc. in water. It appeals to fish ar more strongly than conventional paint. It can be applied to all types of lure fishing including area fishing, bass fishing, and salt water fishing. Keime Light has not been used as paint for lures as it is invisible to human eye. Therefore, it is "next-generation paint." In the case of applying Keime Light to a white spoon It is observed that Keime Light emits light with a black light in a dark place as shown above, although it is difficult to find that light is emitted in a lighted place.