nigo (aozoragarou), lunasa prismriver, touhou, 1girl, alternate costume, arm support, ass, ball, blonde hair, blush, cameltoe, contemporary, fallen down, female focus, from behind, hat, lace, lace-trimmed panties, lace trim, loli, looking back, lying, on floor, on side, panties, pantyshot, racket, shade, shoes, short hair, sneakers, solo, tennis, tennis ball, tennis court, tennis racket, trefoil, underwear, upskirt, white panties, yellow eyes