Mia: Unjou no Neverland

In a city where adults go through the motions like robots, Mia feels claustrophobic. Meanwhile, the news is rife with stories of children getting kidnapped. One day, Mia runs into a young man named Joema. At his house, she sees fairies and children with animated faces. Are they holograms produced by his machine? But friendship with Joema comes with a price, Mia learns, as red-eyed Crows approach... (Source: MangaDex)