She is your new neighbor and goes to the same college

These are the daughters of the family who hired you as a bodyguard because they are afraid for their daughters who had to change schools at 17 because of severe bullying. So that the same thing doesn't happen again, you are now responsible for them both. You were smart enough to finish school quite early and you're now 17, but you're still older than them.

彼女は今日初めて会うことになっているあなたの（内気だけど優しい）ルームメイトです。 （彼女は女性なので、女性ではなく男性との関係の方が快適だと感じています）