Barkas and Addie


Barkas became an Osada Ryu instructor in 2011 when he opened the Shibari Dojo Vienna. He is one of the 3 licenced Osada Ryu instructors of the world. Since 2015 he carries a given name by Yukimura Haruki Sensei. Harutsuju. This honour allows him to teach Yukimura Ryu as well.

Another huge influence is the friendship with Nawashi Kanna Sensei and Kagura San, which started when Barkas co-organized their first tour outside of Japan in 2013. As a product of this high level education, he developed his own, very specific style called “Ranboo”, which is a highly dynamical and stormy way of doing and thinking Kinbaku. He co-organized the annual Viennese Rope Festival and other events such as the “A night full of Kinbaku”.

Within his work as a Kinbaku teacher and performer, he cooperates with different artists and arts institutions, such as the Zafraan ensemble, the Viennese Tanzquartier, the photographer Tom Hofmann and many more. A special focus of Barkas is the implementation of various philosophical, sociological, physical, mathematical and historical ideas into his approach.

Another of his recent developments is the metaphor of tying as an interview – a certain mind-set that can help to perfect one’s own style. Intellectuality and emotionality don’t contradict each other. “To fill the techniques with life and personality”. He doesn’t tie people, he ties with them. Performances and Workshops all over the world, such as at Shibaricon (‘14 & ’15 & ‘16) in Chicago, at Moscow knot, at Kannawa Kai and Studio SIX in Tokyo, at West Coast Bound in Vancouver, and many other events and occasions, have made Barkas a well-known and demanded Kinbaku artist.


Addie stumbled into rope several years ago as a bottom and it has been bringing her immense joy ever since. She soon discovered her inner top when she dove into tying and self-suspension as alternate methods of practicing and experiencing rope. She now identifies as a switch, a creative sadist, and an overall rope enthusiast. She has spent the last while travelling and co-teaching with her partner Barkas, and when in Vancouver she helps run her local chapter of Hitchin’ Bitches. She has greatly enjoyed her rope journey thus far, and is curious to see where it takes her next.

Barkas & Addie Classes

The Rope Interview

The interview as a metaphor of tying. The interview combines the communication discourse with the one of power relationships. To tie with a person is always an involvement with a certain power relationship, simply and at least because of one person is tying and one person gets tied. But this scene also means a nonverbal conversation between the two people tying with each other. In this mind set we can think of an interview to describe the dynamics. With the help of some ipponnawa techniques we will explore some of the more obvious and some of the more subtle references to the interview metaphor.

Prerequisites: Basic knowledge of rope bondage

Level: All

Type: Hands On


Suspensions. Advanced

This advanced class will work on various positions in suspensions. This enables the participants to use suspensions for different purposes within their play.  Positions covered include Aomuke zuri (face up suspension), Gyaku ebi zuri (face down, legs bend to the back), and Sakasa zuri (head down/inversion).

Prerequisites: Provable advanced knowledge of Rope Bondage/Basic Suspensions

Level: Advanced

Type: Hands On


Addie Classes

Bottoming Rants

This class is built for bottoms and tops alike, with the aim of unpacking the bottoming experience, deconstructing a few myths, building solidarity, and finding tricks to work through tough spots. Addie has informally called this class “the Bottoming Rants” as it is a collection of stories, realizations, learning experiences, resolutions, tricks, and learn-from-my-mistakes gathered through personal experience and discussions with friends and colleagues. It will help bondage enthusiasts on both ends of the rope work together to make constructive, positive experiences.

Rant…er…discussion topics include: Bottoming education and some of its uses and pitfalls. Mental and physical traps we fall into when bottoming, and how one can address and reframe these constructively. The myth of the “good bottom.” Being new to the scene. Vetting and evaluating new play partners. Thoughts on the partnership between tying and tied, and on building a healthy bottoming community.

Level: All

Type: Discussion