At the halfway point of his high school education, Nemo tells his mother that he and his sister are in love. He tells her that he's giving up his job and his savings to go live with his sister, who is a wild bear. He says that he watched her kill wild boar the other day, and that it's just the opposite of what he'd like to do with his life: live as a wild animal. The two decide that they'll have to find a way to get rid of yoshiko, because she's not suited to the modern world. They'll need to figure out a way for her to get back to the forest, where she'll be able to find food and shelter.