Yes, just one.
And I don't see Miku at all in this game.
Come on, you understand my logic... Do you really think the mafia would half-reveal themselves in order to execute useless Naru/Sensei, while exposing themselves to a shot from Ray, from whom there is no protection? Sorry, but no.
Added after 30 seconds
And why is everyone writing the same clue, but not me?
Orpheus established the mysteries of Hecate on Aegina, where she was most revered. Her temple was in Argos, mysteries in honor of Hecate were held in Zerinthos, where dogs were sacrificed in her cave.