idolmaster, idolmaster 2, ganaha hibiki, takemura sesshu (shimoigusa-p), cover, cover page, doujinshi cover, 1girl, ahoge, backlighting, bangs, bed, bed sheet, black hair, blue eyes, breasts, fang, hair ornament, hair ribbon, indoors, in profile, knees to chest, knees up, long hair, looking at viewer, looking to the side, nipples, nude, on bed, ponytail, ribbon, sitting, smile, solo, tied hair, yellow ribbon