1girl ahoge arknights bangs black_coat black_hairband black_pantyhose blue_eyes blue_hair blush chair coat couch feet hairband hand_on_own_face highres indoors leg_up long_sleeves looking_at_viewer mole mole_under_eye motion_lines onafuku one_eye_closed open_mouth original pantyhose ponytail short_hair short_ponytail sitting soles solo tearing_up tears trembling