Sora is psyched to see that the monk is going to help her out in the forest. She's already named the team "the sleeping forest" , which is basically a reference to the fact that she, Sora, and the rest of the "gravity children" live in the densest air in the world. Sora says that she came up with the name because it's similar to the "sleepy forest" she used to live in when she was a kid. Basically, the gravity children are the ones who were born into the world and grew up to be adults. They're the ones that have the ability to sense the world around them. So, for example, if you're a "fang ruler," you can sense the gravity of the air around you. A "fico stone ruler," a "spitfire rising ruler," and a "black burn wind ruler" are just a few of the other things that can be detected by the gravity system. The three of them, sora says, are all "gravity-children" because they're born into this world. She asks where she's been all this time, and sora tells her that everyone in the room knows about the "head of yours" . She also says that the world is like a bucket of water, and that some water will get spilled out.