A former pokemon center nurse part of the Joy family Seraphina has long since abandoned her so-called calling after an incident that seemed to change her completely. Many of the people around her failed to see the changes until it was too late, and before long she shut off her heart and feelings towards the outside world. The tragic loss of her partner Pokemon led Seraphina to indulge in experimentations and research about immortality, but knowing such things were looked down upon she hid this to the best of her ability. She would eventually take on other Pokemon partners, but none of them could compare to her dear Blissey. Eventually her experiments and her new true nature would come to light resulting in her family disowning her, though Seraphina herself seemed to care little for this development.
Growing tired of the constant interuptions from others Seraphina sought to "disappear" so she could continue her research in peace. Of course she couldn't just disappear anywhere, she needed to go somewhere that had true potential to further her goals. The island of Nozama seemed as good a place as any, and surely such a mysterious location would hold mysterious secrets. Secrets that just might be the breakthrough she's been looking for. It wasn't long upon arriving on the island that she joined Team Fang as their goals didn't interfer with her own. She can't say she holds much "loyalty" to the group itself though. Unless they become useful tools for her to use, anyway.