Anna and the gang chase after Nijee, who has stolen a toy robot. As they face off against the Hanninda, Luluka comes with a message: Maestro Usonoir is on the move.

Anna and Mikuru are on their way to school when Rei, the Student Council President...

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.