Yoru Naku Suzume

Children mysteriously disappear, and it was a big problem for many parents. One of the parents wanders through the streets, asking people, if they ever heard about the swallow, crying at night. The waitress working in the bar leads it to the bar and allows her to talk about his situation. The bar is listening to the waitress, bartender and girl. As soon as he finishes talking, he leaves. Now everything you need to make a waitress and bartender is to wait. The girl disappears from the bar and appears on the streets. Find and track down the girl about whom we are talking about, and follow her to learn ...?