1girl, arknights, brown_eyes, detached_sleeves, dress, drink, drinking_straw, drinking_straw_in_mouth, erato_(arknights), feathers, glasses, hat, highres, long_hair, looking_at_viewer, pink_eyes, s2rid, see-through_clothes, solo, summer, sun_hat, thigh_strap, water, water_drop, white_dress