[See another image about this article]This demonstration experiment utilizes the 5G environment of KDDI DIGITAL GATE and “AWS Wavelength”, and aims to build a system that enables realistic lessons even online. In the past online lessons, there was a problem that it was not possible to accurately convey how to take “swing” and “pause” in Japanese dance due to delays and dropped frames. The system of this demonstration experiment using 5G and “AWS Wavelength” is said to have made it possible to accurately convey the “swing” and “between” of Japanese dance through real-time communication of high-quality video. In addition, by using an application that allows masters and disciples to play their own music at the same time, online lessons with less delay have been realized. KDDI aims to improve the convenience of online lessons by applying the online lesson system built in this demonstration experiment to fields other than Japanese dance.