koku, choumai sui, absurdres, game asset, highres, large variant set, non-web source, official art, self-datamine, variant set, 1boy, 1girl, bedroom, black hair, blush, breasts, cardigan, closed eyes, formal clothes, hair ornament, hand up, huge breasts, indoors, kinou yumeto, lying, nandome ka no hajimemashite, on back, on bed, open cardigan, open clothes, open mouth, panties, suit, turning head, underwear, white suit