Kagemasa Shizumiya

is the younger brother of Masahito Shizumiya, who transformed into .
==History==
to be added
==Abilities==
to be added
==Kamen Rider Proto Ryugen==
Budou Arms
 is Proto Ryugen's default grape-based armored Chinese Soldier form. Accessed through the Budou Lockseed, this form bears the helmet.
While assuming Budou Arms, Proto Ryugen dons the and his Arms Weapon is the Budou Ryuhou.
Appearances: Kamen Rider Zangetsu Stage -Gaim Gaiden-, Novel: Kamen Rider Gaim Gaiden: ~Kamen Rider Zangetsu~.
==Equipment==
===Devices===
*Sengoku Driver
*Lockseeds
===Weapons===
*Black-colored Budou Ryuhou
==Behind the scenes==
===Portrayal===
Kagemasa Shizumiya was portrayed by .
==Notes==
*Kamen Rider Proto Ryugen's suit and weapon are recolored from Kamen Rider Ryugen Budou Arms.
==Appearances==
* Kamen Rider Gaim
**Kamen Rider Zangetsu: -Gaim Gaiden-
**Novel: Kamen Rider Gaim Gaiden: ~Kamen Rider Zangetsu~
==See also==
Category:Kamen Riders
Category:Heisei Era Riders
Category:Heisei Phase 2 Riders
Category:Stageshow Riders
Category:Gaim Riders
Category:Heroes
Category:Villains
Category:Gaim Characters
Category:Evil turns good
Category:Relatives
Category:Deceased