transmission,’ or ‘secret transmission.’ The Okuden sets contain advanced-level techniques. Okuiai Iwaza are performed from tatehiza. Okuiai Iwaza no Bu (奥居合居業之部) contains the following techniques: 霞 Kasumi 脛囲 Sunegakoi 戸詰 Tozume 戸脇 Towaki 四方切 Shihōgiri 棚下 Tanashita 両詰 Ryōzume 虎走 Torabashiri Okuiai Tachiwaza no Bu (Okuden) Okuiai Tachiwaza are performed from a standing position, with the exception of the three Itamagoi waza, which start from seiza. Okuiai Tachiwaza no Bu (奥居合立業之部) contains the following techniques: 行連 Yukizure 連達 Tsuredachi 惣捲 Sō Makuri 惣留 Sō Dome 信夫 Shinobu 行違 Yukichigai 袖摺返 Sode Surigaeshi 門入 Mon'iri 壁添 Kabezoe 受流 Ukenagashi 暇乞其の一 Itomagoi Sono Ichi 暇乞其の二 Itomagoi Sono Ni 暇乞其の三 Itomagoi Sono San Bangai no Bu (Okuden) Bangai (番外, lit. ‘extra’) are extended tachiwaza. These waza are not koryū, but were created by Ōe Masamichi, along with the Katate Hayanuki exercise. Bangai no bu (番外之部) contains the following waza, performed from a standing position. 速浪 Hayanami 雷電 Raiden 迅雷 Jinrai In addition to variations of Hayanami and Raiden, some lines contain additional Bangai waza.3 Komei-Juku (Yamauchi-ha) practices the following set of five bangai kata in addition to the aforementioned three: Mae Aranami Kesaguruma Takiguruma Tatsumaki Kokusai Nippon Budo Kai formerly JKI (Masoka-ha) practices one additional bangai kata in addition to the aforementioned mentioned three: 4.鬼 Akuma Barai (shihogiri) Paired Waza (Kumitachi) Musō Jikiden Eishin-ryū's paired waza (kumitachi, 組太刀, Kenjutsu) are often taught only to advanced students after years of study. Some of these sets are rarely seen outside of Japan. Some ryuha have the first set (tachi uchi no kurai) as part of their yudansha curriculum. There is a high incidence of grappling, striking, and disarms in these paired sets. Some waza use both long (ōdachi) and short (kodachi) swords. Some waza begin with swords drawn; others begin with swords sheathed and employ nukitsuke (drawing) techniques. Typically these forms are practiced using bokutō; however, it is also practiced at high levels with shinken. Each of these katachi (essence of kata) was created to promote practice of a key principle of Eishin Ryu under controlled yet reasonably realistic conditions. Tachi Uchi no Kurai Tachi Uchi no Kurai (太刀打之位) is first kumitachi waza set in Eishin-ryū. Both practitioners use a single long sword. The techniques are performed from a standing position. There are two versions of this set: the original set of 10 waza (Tachi Uchi no Kurai) and the revised set of 7 waza