A middle school girl who was turned into a bratty kid during that incident but has now returned to her bright and energetic self! She transforms into Cure Answer. Her catchphrase is "Every mystery solved with a gold star! The Great Detective, Cure Answer!" After battle, she detransforms back into Anna Akechi.

She had a hard-boiled personality during the incident, but is now back to being a clumsy, slightly airheaded middle schooler. She has romance on the brain and is terrified of ghosts and scary things. She transforms into Cure Mystic. Her catchphrase is "Jumping with a smile through layers of deduction! The Great Detective, Cure Mystic!" She loves Anna. After battle, she detransforms back into Mikuru Kobayashi.

She acted like a gyaru during the incident, but is currently a mysterious and cool high school girl who has a cute side—she loves ice cream. She is close with Eclair. She transforms into Cure Arcana Shadow. Her catchphrase is "Enveloping all in mystery and secrets, Cure Arcana Shadow. Now, let me invite you to the labyrinth." After battle, she detransforms back into Ruruka Moria.

A reliable high school girl who supports the group with a dignified presence, having somehow managed to erase the memory of her acting like a baby during the incident. She's a big sister figure who loves eclairs.

A genius inventor who went from being a flamboyant flirt back to a normal young boy. Using his Pri-Kits, he searches for a way to escape this deserted island.

An executive of the Phantom Thief Group. The culprit behind this mess as well. Having learned nothing from the previous personality incident, he brought Anna and the others to a deserted island by boat. However, Nijy himself ended up stranded when the boat broke, and he has no idea how to get back. He apologetically asks the detectives for a truce and cooperation.

The boss of the Phantom Thief Group. He aims to cover the world in lies, but even he is exasperated by Nijy's antics.