Kaitou Tenshi Twin Angel ~Soshite Shinwa no Otome-tachi~

In Twin Angels: The Mythical Maidens, Haruka, Aoi, and Kurumi once defeated the demon king Zelusifer and saved the world. They sacrificed their Twin Angel powers to rescue the injured Lilica and Eris, but found new purpose and hope, returning to their peaceful days. One day, they receive a message from Tenshi-chan, a fairy who was supposed to have vanished: 'Help me, Haruka... Aoi...' Soon after, a mysterious transfer student arrives at school, and in Italy, Lilica and Eris disappear during their recovery. What else awaits?