Med student, Ruan Ruan became a rabbit fairy, and then she met a cold-blooded Gumiho. On their first meeting, she was killed by the Gumiho but who knew that she would be perfectly fine the next day? For the sake of survival in this fantasy world, Ruan Ruan followed the Gumiho, Qi Yang, as his little follower: doing the laundry, cooking his good, putting him to sleep.. She even has to calm him down when the master is angry. The most troubling of all, is when the full moon comes, Qi Yang needs to feed on her blood as his living blood store.