Rule 34 Dev - 1boy arthur_beresford bare_shoulders blue_eyes child csanaca dated higeki_no_genkyou_tonaru_saikyou_gedou_last_boss_joou_wa_tami_no_tame_ni_tsukushimasu highres long_hair looking_at_viewer male_focus open_mouth simple_background sketch sleeveless solo spot_color tank_top twitter_username upper_body|21440039166