[Machine Translation] It s been over 10 years since the launch of *Sa-do*. The trend has taken root, and in this living with COVID" era, saunas continue to evolve. The Sauna Ambassador" explores renowned establishments, new spots, and even in-office (!) saunas to uncover new possibilities. What insights into the relationship between saunas and life has this pioneer of the trend who seeks ever-greater comfort and inner harmony reached through contemplation amid the heat and cold water?