Ryoma Takebayashi is a young boy living by himself in a forest, who, in a previous lifetime, used to be a tortured middle-aged Japanese office worker. He meets a group of distressed travelers in the forest, and decides to save them.

The Adventurer's Guild sets up a large-scale group of adventurers to deal with the massive monster infestation discovered in the abandoned mines. Ryoma joins them.

Ryoma and Eliaria make another attempt to tame the limour birds. If they succeed, it would be a great milestone in their careers as monster tamers. However, whatever the outcome, their separation is inevitable as Eliaria leaves for school.