The story begins with Happy leaving his home, along with his dog and his best friend, on a quest to become the happiest person in the world. He learned magic, defeated monsters, and became rich, but he still wasn't happy. The book's last pages have been torn out, and it continued to repeat in a loop. This resulted in Happy never being able to accomplish his goal. Kikitchi took the book home from the library and entered the story while in his house, causing Celebria to be shrouded in cloudy smoke and bits of paper. Touching the smoke would cause someone to turn into paper.