Marianne

Base: Mermaid Island
Type: Liberator (A-Virus)
Eye Color: Green
Hair Color: Pink

Marianne, codenamed Diamond (ダイヤモンド), is a minor character of Valkyrie Drive Mermaid who serves as one of Charlotte Scherzen's most trusted followers in Adel.

For some unknown reasons, Marianne uses an unknown Extar as an Arm that becomes giant gauntlets for her to use in battle.

(Source: Valkyrie Drive Wiki)