Sin

Sin is a rope practitioner, author and rope designer who publishes under that single name. The Kannōnawa website describes Sin’s teaching as advanced classical kinbaku.

Lineage

Sin’s site says that Sin encountered the traditional scene in Japan in 2000 and took individual instruction from Shigonawabingo, Yukimura Haruki, Jubei Kamui and Harutokyou, among others. The site also names Aotsuki Nagare, Yoi Yoshida, Kazami Ranki, Kasumi Hourai and Hajime Kinoko as people Sin worked with, and associates Sin most closely with Ero Ouji and the Kannōnawa style. A 2015 Kinbaku Today interview says Sin resumed rope practice in 2012 and became a student of Bingo Shigonawa.

Teaching and performance

Sin’s site describes individual and weekend group instruction in advanced classical kinbaku, including philosophy, psychology, anatomy and technique, and identifies professional dominatrices as a teaching specialty. Sin’s site lists performances at pink theaters and Onawa Asobi in 2015, 2016 and 2020, and spontaneous sessions on an international private circuit since 2013; a 2025 Kinbaku Today interview dates regular underground performances to 2011. The events page describes the live sessions as unchoreographed.

Writing and rope

Kinbaku Today describes Sin as a frequent contributor who has interviewed Japanese rope artists. Sin’s books include the 2016 Year of the Bakushi and the 2019 The Psychology of BDSM & Rope Bondage; the publications page also lists Bound, a video, and Nawapedia.

In the 2025 interview, Sin says that the search for rope free of jute batching oil came before establishing Amatsunawa in 2014 as a sole-trader business. Sin says the work led to KOUMANAWA and that Sin became Japanese manufacturer Marusan’s engineering consultant and its sole distributor worldwide. Sin’s site says Sin designed KOUMANAWA jute asanawa and holds certification as a nawashi in Japan’s rope industry.