1boy 2019 black_background black_choker black_jacket blazer blonde_hair blood blood_on_clothes choker collared_shirt dated diabolik_lovers facing_to_the_side fangs hano_luno happy_birthday highres jacket looking_at_viewer male_focus multicolored_background sakamaki_shuu school_uniform shirt short_hair solo sweater vampire white_background white_shirt yellow_sweater