Shiruku Ieiri invites Anna and Mikuru to her show, and when they come to her dressing room, she shows them a calling card that was left by the Phantom Thieves' Guild. As they search the theater before the performance, Anna spots Luluka.

Prompted by a prediction in the Tome of Mirages, Luluka goes to Patisserie ChuChu to steal a Makoto Jewel embedded in a photograph. When Kurea brings her some ice cream, Luluka hands her a calling card…

Together with Rei, Anna and Mikuru investigate some mysterious incidents happening at Makoto Mirai Academy. As they check the science room, music room, and art room, Rei notices a pattern.