Masahito Shizumiya

was a researcher who formerly worked alongside with Takatora Kureshima in a series of experiments on the Torkia Republic as part of Project Ark. Though he had seemingly died eight years ago when the experiments failed, he resurfaces in the present upon Takatora's return to the Republic and transforms into .
==History==
to be added
==Abilities==
to be added
==Forms==
==Equipment==
===Devices===
*Sengoku Driver
*Lockseeds
*Musou Saber Holster
===Weapons===
*Musou Saber
*Arms Weapons
**Melon Defender
*Dau
==Behind the scenes==
===Portrayal===
Masahito Shizumiya was portrayed by .
==Notes==
*Over Lord Inves' suit and weapon are recolored from Redyue and Dau.
==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:Non-human Riders
Category:Stageshow Riders
Category:Gaim Riders
Category:Monsters
Category:Over Lord Inves
Category:Villains
Category:Stageshow-exclusive Villains
Category:Gaim Characters
Category:Relatives
Category:Good turns evil
Category:Deceased
Category:Butterfly Monsters