1girl ahoge bangs bare_legs blue_archive blush boots closed_mouth coat coffee_mug collared_shirt cup greyscale halo haruyukiko highres hina_(blue_archive) hina_(swimsuit)_(blue_archive) holding holding_cup horns innertube jacket knee_boots long_hair long_sleeves monochrome mug multiple_horns multiple_views one-piece_swimsuit open_clothes open_coat parted_bangs sandals school_swimsuit shirt short_shorts shorts sitting sleeveless sleeveless_shirt smile standing swimsuit thighhighs very_long_hair