Sansei

Sansei is a rope teacher, rigger and model based in Prague who teaches at the studio Subspace. Her Subspace profile dates her start in rope to 2017, and the Prague Shibari Festival’s 2026 presenter page says she has taught at Subspace since 2021.

Training and approach

When the Prague Shibari Festival first announced her as a presenter in August 2021, it described her as a rope bottom since 2017 who had only recently begun exploring the rigger’s side, and named Naka-ryū as her preferred style in both roles. Later teacher bios say she has studied with Petr Soptík since 2019 and, since 2022, the Kinbaku LuXuria style with Riccardo Wildties and Red Sabbath; the festival’s 2026 page calls her a certified educator in that style.

Her own descriptions stress the model’s side of rope: deep surrender to the person tying and an almost altered state while tied. Her profile says she focuses on traditional kinbaku, explores the often dark emotions rope can bring as well as their beauty, and draws on Japanese aesthetics and philosophy. A 2026 Studio Ma listing adds that working as both model and rigger shapes what she teaches, and her festival bio says her workshops address both roles and ask models to take an active part in learning.

Teaching at Subspace

The Subspace profile links to well over a hundred of her sessions from 2023 onward. They include multi-part kinbaku fundamentals, advanced and evening kinbaku series, Naka-ryū study groups on topics such as gote, futomomo and untying, and themed workshops on semenawa, hashira, strappado, bamboo, neck rope and hypnosis. She also gives talks, among them sessions on hentai in traditional Japanese tying, on crossing consent, and on the line from the history of torture to seme-e. Some sessions are in English. In July 2026 Subspace listed her as an instructor at The Other Side of Ropes, a two-day exchange and research event.

Festivals and workshops abroad

The Prague Shibari Festival has announced her as a presenter with Soptík in several editions since 2021. At its autumn 2025 edition she performed with a partner named Jan. In September 2026 she taught six workshops there, three days running, with Rory and Soptík, on subjects including arm binders and strappado for less flexible arms, tying the hands, and waist rope.

With Soptík she also teaches abroad. In autumn 2026 the pair gave a two-day neck rope workshop at Peony Studio, a bamboo workshop in English in Lyon, and a two-day semenawa intensive at Studio Ma in London, and Anatomie Studio in London listed strappado and hashira floorwork classes with them. At Subspace’s December 2026 Shibari Night with Kinbaku LuXuria she was billed with Rory among the opening performers.