art by doppel, 1girl, black hair, black ribbon, black sailor collar, black serafuku, bug, ca \(maeda koutarou\), calne ca, crustacean, hair between eyes, hair ribbon, heterochromia, horror \(theme\), insect on head, isopod, jewelry, looking at viewer, neckerchief, necklace, open mouth, red eyes, red neckerchief, ribbon, sailor collar, school uniform, serafuku, skull necklace, solo, tongue, tongue out, twintails, upper body, vocaloid