Koharu "Kirin Order, Kirin" Tsukikage

About

Base: Bhikkuni Island
Type: Hybrid (VR-virus)
Age: 17
Birthday: December 25th
Height: 156 cm
Eye Color: Blue
Hair Color: Blue
Hair Style: Long Hair
Cup: H
BWH: 90-54-83

Koharu Tsukikage is the head of the fifth graduating class, Koharu thinks clearly and decisively. Her strong convictions have tempered a flawless fighting style. Wise beyond her years, her experienced eyes are like looking into a mirror that sees straight through you and knows all. She uses a rapier-like sword in battle.

Koharu is a girl of average height with long purplish-blue hair and eyes of the same color. She is technically the most modest wearing of the Bhikkuni class.

Like the other Valkyries of Bhikkhuni Island, she is infected with the VR-Virus and so she is a Hybrid which gives her the powers of both a Liberator and an Extar.

TRIVIA (mostly from the game):

Koharu's Japanese VA in the game is Risa Taneda.
Despite her origins unknown, she was presumably a post-graduate ballet student a few years ago before she got infected by a VR-Virus and transferred to Bhikkhuni at the age of 17 before the events of Kagurazaka Sisters' arrival in the game.
During the events of the Order Route of the game, Koharu is called as Kirin Order (or simply Kirin by herself), a separate type of the fifth Pillar God Kirin.

(Source: Valkyrie Drive Wiki)