<p>This article discusses a system designed for repetitive movement learning. The concrete target domain is a motor-skill, which requires both knowledge and physical ability. Cyclic behavior of a segmented unit constitutes repetitive movement. It is hard to learn a stabilized way of such movement without any guides. Therefore, the present study provides a supporting system based on a model for guiding players to make appropriate motor actions. Two types of functionality, which work with a fixed model and a fluctuation model, can be optionally selected. This paper mainly deals with the latter one, which needs monitoring of behavior and adjusting of the trigger for guiding from technical viewpoints. Through an experiment, significant improvements are found in performance although subjects do not recognize the difference consciously during practice.</p>