2boys, ?, bara, blush, couple, from_side, full_body, greyscale, kekkai_sensen, kiss, klaus_von_reinhertz, leonardo_watch, long_sideburns, male_focus, mature_male, monochrome, multiple_boys, muscular, muscular_male, nore_(boosuke), on_person, short_hair, sideburns, size_difference, sketch, spoken_question_mark, sweatdrop, tusks, yaoi