That sounds quite interesting, and up front<em>honestly</em>I intended Juno is actually a incubus in mortal disguise (it was all suspicious for single butler serve grandmother all the years so I developed own background story for it) before I decided he has doggie whistle potent enough to call in hell hound running to him :P. Also one reason why he is not shocked and is well composed in front of all lewd stuff happening (and there is own motivation why he would not give no care if Miyako gets down and dirty with Renoa, keyword here being she asked Renoa get off her when Renoa does not comply her wishes).<br/><br/>Anycase Renoa would not able sniff the demonic side at all from Juno (the disguise is basically flawless). Also Renoa's tribe may had forgot largerly excistence of the whistle and it's powers (they may have some vague heroics for origins of the tribe to escape slavery but details not known). However the whistle Juno uses cannot fully control Renoa as it's not whistle to bound to her tribe (basically lesser version of grand artifact one). As this whistle power can be resisted (and even then it works only to call a hell hound but not control it) where as grand one cannot resisted and creates absolute obedience once heard for long duration.