Big Sky

Japan has collapsed after the Great Disaster. Kiruko accepts a request to take a boy named Maru to a place called Heaven. Meanwhile, children live behind the walls of a nursery in luscious green surroundings.

At a strange inn, Maru and Kiruko sink into a drowsy slumber. They awaken to something monstrous under the faint light of the moon. At the nursery, Tokio becomes more suspicious of the world around him. Meanwhile, Shiro receives an unexpected message.

Robin, Haruki and Kiriko lived in an orphanage five years ago in Asakusa; Haruki faces a devastating situation when something terrifying disrupts an event.

Tokio makes a realization after seeing odd-looking babies; Maru and Kiruko are attacked; Kiruko must come up with a strategy.

Maru and Kiruko discover a neighborhood filled with tents after returning to Tokyo; while gathering information, Kiruko hears a scary rumor; Tarao's condition worsens; Dr. Sawatari makes a shocking discovery.

Maru and Kiruko search for the Immortal Order and meet Totori on the way; while looking for water, they come across a badly injured man; someone unexpected appears before Tokio.

Maru and Kiruko thought they found the Immortal Order and the doctor, but it was a hostile organization that opposed the Immortal Order's treatments; Kiruko and Maru get a new job; Kiruko loses patience.

After meeting Maru and Kiruko, Dr. Usami asks them to do something difficult.

Maru and Kiruko make a discovery about Dr. Usami and decide to follow the lead; there's an emergency meeting at the nursery.

Maru and Kiruko go to Ibaraki.

Maru and Kiruko go to the Ibaraki facility; a new group joins the academy; Mimihime tries to make friends with Ohma, who seems lonely; Ohma stays away from the others for a reason.

Maru and Kiruko arrive in a prosperous marketplace. It's the town where the rumored Ministry of Reconstruction runs things. Meanwhile, the academy is suddenly under attack. While trying to take shelter, the children find a hole in the wall.

Mimihime, Shiro, Anzu and Taka go outside in search of answers for their teacher's test; Robin does something awful, causing Kiruko to cry.