What happens if a truly magical story that needs to be completed never gets completed? Alice is sixteen and loves to write stories and read them aloud to her little brother Miju. All her stories are different, but they have something in common: each one must certainly have an ending. Alice knows that if you don't come up with an ending, something terrible will happen. One day, while working on a big novel, Alice disappears, and in her place a talking cat appears in the house. And Midge, who loves riddles so much, must now find the key to the mystery of his sister’s disappearance on the pages of her unfinished book.