Alternative Name: 天国大魔境;Heavenly Great Demon;The Heaven Delusion

Genre(s): Mystery Romance Sci Fi

Demographic: Seinen

Summary:
The children live in a beautiful world, surrounded by walls. However, one day, a boy by the name of Tokio received a message asking him, "Do you... MORE The children live in a beautiful world, surrounded by walls. However, one day, a boy by the name of Tokio received a message asking him, "Do you want to go outside of the outside?" HIDE