Chase

Японское имя:	チェイス
Прозвище:	Mashin Chaser, Protozero, Roidmude 000

Chase, also known as Protozero or Roidmude 000 is a Human-Type Roidmude. He possesses the ability to transform into Mashin Chaser, a form that is based on Proto-Drive's equipment and rivals the power of Kamen Rider Drive.

Like Drive, he also uses Shift Cars, although his are called "Viral Cores". An enforcer sent by Heart and Brain to police the lower Roidmudes by destroying their bodies if they get out of line, Chase is known as the Reaper, a nickname he feels is undeserved since he preserves their Cores so they can re-emerge, unlike their Kamen Rider enemy.

Most recently, he hasn't been feeling himself. So he engages in fights with Drive to find out who he is, which would lead to him discovering his Roidmude number.

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