riku (rikkuru), tatara kogasa, touhou, eyebrows, 1girl, autocunnilingus, barefoot, blue hair, blush, clothes in mouth, clothes lift, cunnilingus, female focus, female masturbation, karakasa obake, kneeling, loli, long tongue, masturbation, mouth hold, no panties, one eye closed, oral, pussy, red eyes, saliva, selfcest, short hair, skirt, skirt in mouth, skirt lift, solo, tears, tongue, tongue out, umbrella, wink