Rope Master

From Wikipedia:

"Bondage as a sexual activity first came to notice in Japan in the late Edo period.^[5] Generally recognized as "father of Kinbaku" is Seiu Ito, who started studying and researching Hojōjutsu is credited with the inception of Kinbaku, though it is noted that he drew inspiration from other art forms of the time including Kabuki theatre and Ukiyoe woodblock prints. Kinbaku became widely popular in Japan in the 1950s through magazines such as Kitan Club and Yomikiri Romance, which published the first naked bondage photographs. In the 1960s, people such as Eikichi Osada began to appear performing live SM shows often including a large amount of rope bondage, today these performers are often referred to as Nawashi (rope master) or Bakushi (from kinbakushi, meaning bondage master)."

Below are some examples from the early days of Kinbaku, including as an essential element a fundoshi!