Around 30 years ago, we started studying clinical arrhythmia at the same time as a resident at the National Cardiovascular Center (currently the National Cerebral and Cardiovascular Center). Under the guidance of then director Katsuro Shimomura, Dr. Tohru Ohe, Dr. Shiro Kamakura, Dr. Naohiko Aihara, Dr. Takashi Kurita, Dr. Kazuhiro Suyama, Dr. Wataru Shimizu, Dr. Yoshio Kosakai and other well-known staff members worked on the basics and latest clinical practice in ablation, devices and hereditary arrhythmia. Each of us learned from their expertise and further developed them, and we have since been providing the latest treatments and guidance to the next generation in clinical practice. Over the years, the diagnosis and treatment of arrhythmia has greatly advanced. At JHRS2024, we are planning to have invited lectures, debate sessions, and symposiums on cutting-edge diagnosis and treatment in each field of arrhythmia, which is a specialty of both of us. The important topic of increasing the diagnosis and treatment of arrhythmia will also be addressed, and there will be a number of training sessions for nurses, allied professionals and educational sessions to get junior doctors interested in arrhythmia.