Raven has recurrent nightmares about her Prophecy and her Father Trigon. She won't be pleased when she finds out Riku knows about it. And she'll likely refuse extra help but she used to be close to Riku (in another RPG), so she won't mind as much as if it was a perfect stranger. And it could be an opportunity for building CR anew. ;)

And a Komory bat seems fitting for a goth girl, don't you think? XD