While Milo gives Jabi a blood transfusion to help heal him, Captain Pawoo attacks Bisco. Bisco tries to explain that mushrooms consume Rust rather than spread it which is why they are often seen at concentrations of Rust, and that he is looking for the legendary Rust-Eater mushroom. Jabi explains to Milo that the Rust-Eater mushroom is rumored to be near a nest of monsters at a place called Weeping Child Ravine in Akita Prefecture. Bisco subdues Pawoo with a drugged arrow and reunites with Milo and Jabi...