4boys, back, bangs, black_eyes, black_hair, black_jacket, black_neckwear, black_ribbon, black_wings, blue_eyes, blush, bound, bound_wrists, character_name, closed_mouth, copyright_name, demon_boy, demon_wings, dress_shirt, eyebrows, eyebrows_visible_through_hair, eyewear_on_head, facial_mark, formal, frown, glasses, grey-framed_eyewear, hand_on_another's_head, jacket, japanese_clothes, long_sleeves, looking_at_another, looking_at_viewer, looking_to_the_side, lying, male_focus, multiple_boys, neck_ribbon, on_back, on_side, parted_lips, pink_ribbon, profile, purple_eyes, red_hair, restrained, ribbon, shirt, slit_pupils, suit, sweat, swept_bangs, track_jacket, white_hair, white_shirt, wings