Rule 34 Dev - 1girl averting_eyes belt blue_eyes blue_hair blue_nails blush cardigan earrings envyvanity gift hair_bun hololive hoshimachi_suisei hoshimachi_suisei_(school_uniform) jewelry long_hair nail_polish ribbon school_uniform serafuku simple_background single_hair_bun solo upper_body valentine virtual_youtuber white_background|15426115029