Moriteryu

Moriteryu (守手流) is a special martial art developed by Saga no Mamoru during his time as Bushin Rider Nio. It is designed to make use of the Flames of Ari so as to best fight the Enmi, though it can be used in combat with ordinary humans (or fellow Riders) as well. Only members of the Saga Family seem capable of teaching and passing it on, as even the likes of Masao Onishi, head of the Kane Shrine and longtime ally, was unable to finish the training of Era Saga and had to call upon his father. Through longtime exposure to the style, one can develop some small amount of proficiency at it (as shown through Rokka Ooguro). Once one has learned even some of it, it is nigh-impossible for them to forget; Era states that it's like riding a bike but deeper, as if the techniques have become a part of your mind and body. Ikegu later proves that Enmi can learn to use it as well.

It is typically divided into three branches: Misshaku (密迹), Naraen (那羅延), and the ultimate Shukongō (執金剛). However, some practitioners have created their own unique form of it, which incorporates the three branches but has original additions:
 * Era Saga utilizes Oredō (オレ道), a varient developed during his years away from home that incorporates elements of street fighting and parkour, as well as the occasional use of a motorcycle. While largely indistinct from regular Moriteryu, the major difference between them appears to be the use of names; Era's variant introduces the term Hissatsu (必殺) for his finishers and the occasional use of the term "Rider" before attacks.