1girl, ass, ass focus, back, bare arms, bare shoulders, bikini, black bikini, blonde hair, blush, bow, braid, breasts, closed mouth, embarrassed, from behind, hakunetsu denkyu~, halterneck, hat, hat bow, kirisame marisa, leaning forward, long hair, looking at viewer, medium breasts, side-tie bikini bottom, side braid, single braid, sitting, skindentation, solo, string bikini, sweatdrop, swimsuit, thong, thong bikini, touhou, twitter username, white bow, witch hat, yellow eyes