Milo and Bisco are happily reunited, although Bisco has transformed, with a glowing right arm and his body is exuding spores causing Milo to surmise that Bisco is half-human and half-Rust Eater. Bisco attacks the Kurokawa Tetsujin but it recovers after each attack and Tirol deduces that the Tetsujin's "pilot" resides within the iron mask and that should be the focus of their attack. Pawoo volunteers to split the mask, and after Bisco agrees that she can have anything she wants on her return, she suddenly grabs and kisses him...