koi saku miyako ni ai no yakusoku wo ~annaffiare~, faceless male, koba kasumi, koba kazuomi, natsume eri, game cg, 16:9 aspect ratio, 1boy, 1girl, bangs, belly peek, blue eyes, blush, bow, breast grab, breasts, brother and sister, buttons, clavicle, cleavage, colored eyelashes, dutch angle, eye contact, faceless, grabbed from behind, grabbing, groping, hair bow, hair ornament, half-closed eyes, hand on another's hip, hetero, incest, indian style, indoors, lens flare, light-skinned, long sleeves, looking at another, moaning, navel, :o, one side up, open mouth, pajamas, parted lips, pink hair, polka dot, raised eyebrows, siblings, sitting, sitting on lap, sitting on person, sleeve cuffs, socks, solo focus, sparkle, potential duplicate