Affiliate Marketing Secrets

I can draw , but my imagination sucks pretty much . ><
Well I thought of something like a girl named Anastasia Crespelle / Lemaitre and she's being captured in the Labyrinth in a church of a high school in Japan . The Labyrinth is based on the third level of the church which is out of bounds to people . Okay maybe not neccessarily out of bounds , but there's been this rumour that there's a ghost on the third level and intruders would be found missing . ( Maybe examples of intruders and real cause of getting missing ? )
But so ! There's this guy named Kaito and he's a freshman in that school . He can be a delinquent or a nice guy , it depends . He ventures into the third level of the church without knowing of the ' curse ' or rumour and sees Anastasia .
He then returns to the third level almost every single day for lunch ( as he has few / no friends ) and eventually gets to know Anastasia . She is a intelligent person , who can ' read ' minds from people's actions and the way they talk .
PROBLEM :
1. Why did Anastasia get captured and sent to the church in Japan ? ( She's some rich aristocrat's daughter by the way ) Is she a pawn or a traded object and affiliated with the school's heads ?
2. Very very important . How should this story continue ? Mystery ( of the school ) ? Or what ? It's going to end by having World War II and she getting reunited with Kaito after the war . How are they going to get separated ?
Best answer gets 10 points . Please help !!
Thank you ! (: