1boy, 1girl, bangs, black bra, black skirt, black thighhighs, black vest, black wings, blush, book, bookshelf, bra, breast grab, breasts, censored, clothed sex, collared shirt, commission, cross-section, demon girl, demon wings, feet out of frame, garter straps, grabbing, grabbing from behind, hair between eyes, hair intakes, head wings, hetero, koakuma, large breasts, library, long hair, long sleeves, looking at viewer, mosaic censoring, necktie, nipples, open clothes, open mouth, open shirt, open vest, penis, pointy ears, red hair, red necktie, sex, shirt, sidelocks, skeb commission, skirt, solo focus, standing, standing sex, thighhighs, touhou, underwear, uterus, vaginal, vest, white shirt, wings, yamu (reverse noise), yellow eyes