The Four Schools ( (よん) (りゅう) () Yon-ryūha?), are schools created by Fudo Myo-o. Each school have a license that can be downloaded by a Samurai's key. Licenses together with Locker Balls are essentialy devices to run a program that controls the Binding and Spliting of matter.[1] Each school has a special skill that their members can use, however these can be used by other Samurai if a Key is connected to the other Samurai’s Key, as seen with Benkei.

Known Schools

Other School



  1. Samurai Eight: Hachimaruden Manga; Chapter 17, page 6

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