Sagrey commands as one of three high-ranking officers in the Android Army under Buraiking Boss, alongside Barashin and Arkborn. Holding authority directly beneath the leader, Sagrey participates in the systematic conquest targeting humanity. Physically, Sagrey stands visibly shorter than the muscular Barashin and lanky Arkborn. This commander demonstrates a willingness to directly confront Buraiking Boss, specifically admonishing him when the leader's anger escalates his "iron pressure."

The 1993 OVA *Casshan: Robot Hunter* reimagined Sagrey as a statuesque female robot lieutenant, a femme fatale gender flip from the original male portrayal. Serving the renamed "Black King" (Buraiking Boss), this iteration engages in military operations against the human resistance and Casshan. Her destruction comes when Casshan punches a hole through her torso during combat. This redesigned Sagrey subsequently influenced the character's depiction in the 2004 live-action film.

Sagrey does not appear in the 2008 reboot *Casshern Sins*, the ongoing *Casshern R* manga serialization, or other franchise spin-off media. The character's background story, origins, and any potential development beyond operational duties remain unspecified across all appearances.