The sun goddess has created a new world outside the house for senzou to live in, but she doesn't know why it's there. She probably thought that she had released it from the house when she left it, but now that she's left it unstable, she can't keep it there. They're trapped in a corner, and the only way to get out is to find a hole in the wall and dig a hole for them to crawl through. The only way they can get out of the hole is to get the three of them to jump into the hole and chomp at the ten percent that's been tapped on the wall. They do this, but they're too exhausted to go back to the other side of the wall, so they have no choice but to hurry up and get out.