[ "Interesting". He can't tell if he failed Persona class or what, but apparently there's a lot more to these things than he knows, so it's strange to him that Shun'ya's the one asking. It's like he's being tested! stop it! Minato is dead now, his school days are behind him... ]

I don't know how official the term is, but... A Persona is a power borne from ourselves, manifesting as a demon ...or hero, or whatever. [ angels. mythological figures. WHATEVER. ] Typically, it's just the one. But I could summon multiple. Pixie is one of them.