1girl :| absurdres bangs beach black_hairband black_ribbon blue_eyes blush bob_cut bow_hairband breasts closed_mouth collarbone crossdressing day embarrassed exhibitionism ghost grey_hair hairband highres konpaku_youmu konpaku_youmu_(ghost) looking_at_viewer male_swimwear male_swimwear_challenge navel nipples outdoors perfect_cherry_blossom public_indecency refuson_man ribbon short_hair shorts sky small_breasts solo sweat swim_trunks topless touhou wavy_mouth