1boy, aged_down, arknights, closed_eyes, closed_mouth, collared_shirt, covering_mouth, expressionless, facing_away, facing_viewer, feathered_wings, feet_out_of_frame, forehead_jewel, from_behind, from_side, greyscale, hair_ribbon, head_wings, iwashi_80, jacket, long_hair, looking_to_the_side, male_focus, monochrome, multiple_views, nude, parted_bangs, parted_lips, passenger_(arknights), ribbon, shirt, simple_background, topless_male, tress_ribbon, upper_body, white_background, winged_arms, wings