: After the battle, they discover the mushrooms on the snake are not the legendary Rust Eater but common matsutake. However, they learn the Rust Eater can be synthesized using the blood of a Mushroom Keeper .
: While previous episodes teased a major clash between Pawoo and Bisco, they quickly form an uneasy alliance to defeat the snake and rescue Milo. Sabikui Bisco Episode 7
: Realizing Bisco is severely weakened by the rust bullet and poison, Milo decides to take on the rescue mission alone. He injects Bisco with "sleepshroom" poison to keep him safe while he heads to Shimobuki Base. Thematic Development : After the battle, they discover the mushrooms
: Bisco and Milo encounter the Pipe Snake , a two-headed, dragon-sized divine beast. : Realizing Bisco is severely weakened by the
: The primary antagonist, Kurokawa, arrives in a blimp, shoots Bisco with a rust bullet, and steals the actual Rust Eater mushrooms. He also captures Pawoo and uses Jabi as a hostage to lure Bisco and Milo to his base.
Episode 7 of , titled " The Stolen Rust Eater ," focuses on the high-stakes confrontation at the Ravine of Children's Tears (Konakidani) and a significant shift in the series' tone from adventure to a rescue mission . Key Plot Points