Rule 34 Dev - 1girl bell black_hat blouse blue_shirt blush brown_eyes church_bell concert glowstick hat highres holding holding_microphone idol idol_clothes light_brown_hair long_hair long_sleeves looking_at_viewer microphone music nijisanji open_mouth parted_bangs shirt singing sister_claire smile solo stage very_long_hair virtual_youtuber yuusa|11551250412