Mugai Ryu

Traditional, japanese swordfighting from Samurai with Katana for cultivating mind and body.

Mugai Ryu

Mugai Ryu Kata

Forms that have been passed down for generations, aiming to hone ones body control, technique and awareness.

Mugai Ryu Kata


Cuttingtest to ensure correct execution and quality of technique.


Mugai Ryu Kenjutsu

Essential techniques and principles taught with the wooden sword for fighting-applications with a partner.


Kochōkai 蝴蝶会

Budōkan in Amsterdam, Haarlem

Inspired by Kamakura Budōkan (public training-hall for martial arts in Kamakura, Japan) Kochōkai opened it’s doors for practice in Haarlem in 2011. Kochōkai uses an old and common Japanese concept made appropriate for it’s place and time.

Kochōkai provides a lot of free training hours and weekly instruction in Mugai ryū (swordfighting-art) and Meifu Shinkage ryū (spike thowing and weighted chain-art) for beginning and seasoned budōka.

19:00-20:00 – Meifu Shinkage ryū shurikenjutsu
20:00-22:00 – Mugai ryū iaidō
20:00-22:00 – Free practice for koryū budō
18:30-20:00 – Free practice for all budō (appointment only)
18:30-20:00 – Free practice for all budō (appointment only)
18:45-19:45 – Free practice for Mugai ryū (Aikidojo Haarlem)
20:00-22:00 – Free practice for all budō (appointment only)

Jephtastraat 1
2026 WB Haarlem
Getting there by public transport:
Take bus 14 heading to “Spaarndam” from Haarlem train station and get off at stop “Zwaluwstraat”

 (click the links for Google Maps)

Mugai ryū and Meifu Shinkage ryū are being taught by Arjan F. Tervoort.

Besides the weekly training, Kochōkai also organises museumtrips, workshops, seminars en demonstrations on a regular basis.

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