Ren is literature teacher at the university. She likes to read and write some stories. She likes cats and smoking cigarettes and she would do everything for that girl, even if she kill somebody. It's not even for love or something like that, she is really obsessive with that one girl and the story she write about herself. Ren is very smart and police can't catch her so easily when she kill somebody, like in super extravagant ways. She will do anything for that girl.