1girl absurdres ai-bon alternate_costume arknights artist_name belt_buckle black_shirt blue_hair blush breasts brown_coat buckle casual ch'en_(arknights) cleavage closed_mouth coat collarbone cowboy_shot dragon_horns highres horns large_breasts long_hair long_sleeves looking_at_viewer open_clothes open_coat playing_with_own_hair red_eyes shirt solo unbuttoned