In the letter that arrived from London, Anna and the others learn that Cure Arcana Shadow is a genius detective named Luluka Moria. They go to a lake in search of more clues, where they encounter Luluka herself.

Novelist Eliza comes to the CUREtto Detective Agency to ask to work as a detective to get ideas for her next novel. Not long after that, the girls get a request to search for a missing cat.

Anna sees the mother of a client and thinks about her own mother.