2boys, arknights, bare_shoulders, black_background, black_hair, black_headwear, blood, blood_on_clothes, blue_hair, collared_shirt, cropped_torso, dongsheng, faceless, faceless_male, long_hair, lumen_(arknights), male_focus, multicolored_hair, multiple_boys, parted_lips, pointy_ears, shirt, simple_background, smile, tentacles, two-tone_hair, upper_body, white_shirt