You first see Philia as a stone figure in the room that holds the Eye of Atomi in the temple. Leon uses one of those items that de-stone characters and she is brought back to life. She tells you that High Priest Lydon has stolen the Eye of Atomi. As you begin to leave on your first quest to find the Eye, she asks to join you. Leon doesn't want tp let her at first, but Rutee counters by saying that Philia is the only one that knows what Lydon looks like.
[Personality]
Philia is very quiet and shy. She tries not to say anything that might offend anyone. She is also a priestess and is totally against the use of black magic. In one part you can look in Baruk's book case and find a book on black magic. If you decide to read it she lectures you. Philia's Swordian, Clemente, is the total opposite of her, which is kind of comical at times. When she first finds Clemente he accidently says how he likes having young girls as his master. Rutee calls him a dirty old man for this, and tells Philia not to take him. Throughout the game, with Clemente and the others' support, she becomes more indepedent and less shy. She is also one of the only ones who doesn't get on Leon's bad side.
When you first get Philia, she is useless. She doesn't have a swordian, and can only use weak rods, not to mention she doesn't have any magic. When she gets Clemente, everything changes. She gets very powerful lightning and holy spells, and her attacks are decent.
[The Truth]
Warning! This section explains nearly everything about Philia. If you don't want to know, then don't read!