From where they were sitting, Sanya is Ron, Eila is HP, and Hikari and Hermione.
From personalities, this one's a bit harder.
Hikari and HP since are both MC and have a special ability.
Eila is similar to Ron in that she's a loyal friend, but cheeky and playful.
Sanya isn't too much like Hermione but Sanya's the most feminine, and Hermione's the girl so there.