A rash of mysterious thefts hits the school, and rumor has it that the apparition "Yousei-san" is behind it. When Nene catches sight of the creature, will she end up losing more than just her school supplies?

Kou gets more than he bargained for when he tries to help a student’s ghost rest in peace. The late Mitsuba may look delicate, but his language is anything but. Can Kou put up with him long enough to help him?

Nene finds disembodied hands appearing in her old club photos! Then, hands start sprouting around her in real life too! They seem harmless, but is there something sinister behind them?

Nene made it back from the Hell of Mirrors in one piece, but she worries about what Hanako may be hiding from her. Just then, strange fish appear, calling her their princess and asking her to join them as the mermaid’s successor.