2girls, ;o, arknights, bad_pixiv_id, bare_shoulders, blue_hair, blush, ch'en_(arknights), crying, dragon_horns, flying_sweatdrops, green_hair, heart, horns, hoshiguma_(arknights), hug, long_hair, low_twintails, motion_lines, multiple_girls, one_eye_closed, open_mouth, shirt, simple_background, single_horn, skin-covered_horns, sleeveless, sleeveless_shirt, solo_focus, tears, tsuyuki_yuki, twintails, upper_body, very_long_hair, white_background, white_shirt, yuri