A Student at Trinity General Academy. She collects explicit lewd magazines and often feels embarrassed by her vivid fantasies. She's 15 Years old, her birthday is April 16, and her height is 148 cm. Koharu, a good-hearted but delusional young girl who belongs to the Justice Realization Committee. She's Semi-Immortal. She uses a black Pattern 1914 Enfield bolt action battle rifle with pink retaining bands. A snail charm hangs on the forward rifle sling point and her gun name is "Justice Black".