Ichiha Shirasu

Base: Mermaid Island
Type: Extar (A-virus)
Eye Color: Brown
Hair Color: Brown
Hair Style: Small Pigtails

Ichiha Shirasu (白州 いちは Shirasu Ichiha) is a student who was transferred to Mermaid Island long before Mamori Tokonome and Mirei Shikishima. She is the Extar of Kibami Saejima.

Nothing is known about Ichiha except she is a masochist (a person who derives sexual gratification from their own pain or humiliation).

(Source: Valkyrie Drive Wiki)