Mt. Takao, a peak that's visited by around 2.7 million people per year, is less than an hour by train from central Tokyo. This lushly wooded paradise has been regarded since ancient times as a place where sacred beings dwell, and our expert guest this time is Shujin Sato, a yamabushi, or mountain ascetic, who has been training on Mt. Takao for almost 3 decades. And in Plus One, the basics of hiking etiquette.