In this chapter, we learn that Udou has a set of parts that work like a muscle. The parts work like this: Udou's air trecks convert all the energy he's using to go from zero to zero into a muscle that he can use to go back and forth between zero and zero. The air splits, and the air splits again. The giant fang is there, and it's the one that was shot at the end of the previous chapter. Udou is psyched, because he was going to kill the beast in one go, but now he has to kill it in two.