1girl ^_^ back-to-back blue blue_hair book bow bowtie closed_eyes clothes_around_waist cloud dappled_sunlight flip-flops from_above hand_on_forehead highres hose jacket_around_waist laughing long_hair minami_seira open_mouth original partially_submerged pool reading reflection revision ripples sandals school_uniform shirt sitting sky sleeves_pushed_up summer sunlight tree_shade twintails water wet