Caren Hortensia (カレン・オルテンシア, Karen Orutenshia?, "Karen Ortensia") is a member of the Church dispatched to Fuyuki City to observe the situation with the Class Cards in Fate/kaleid liner PRISMA☆ILLYA. She acts undercover as the school nurse of Homurahara Elementary School.
Fate/kaleid liner PRISMA☆ILLYAEdit
She is the school nurse in Homurahara elementary. She has been observing Illyasviel von Einzbern, Miyu Edelfelt and Chloe von Einzbern. She displays absolutely no interest in the events, and she is rather carefree about her job as a nurse. She is later revealed to be the Church's representative in the affair related to the Class Card, working as background support as well as supervisor. It is also revealed that she chose to work as a school nurse as it allows her to indulge in her interest in observing the sufferings of children close up.