Milo leaves Jabi, who scolds Milo for his use of a dangerous mushroom drug that improves his physical capabilities, in the care of the local Shimobuki and heads off on Actagawa towards Imihama in pursuit of the Tetsujin.
His weapon of choice is a revolver that fires rusty bullets that infect targets with the Rust disease.
In desperation, Milo injects himself with Bishamon mushroom poison to enhance his powers, and attacks the Tetsujin himself, managing to land on its body and begin cutting it open.