Mochi is a seemingly ordinary cat living in a quiet Tokyo bookstore. But one night, she discovers a magical book that sends her traveling through time. Her first stop is ancient Egypt, where she’s worshipped as a goddess. Though pampered and adored, Mochi grows bored and uses the book to jump to the year 3024—where cats rule the world and humans serve them. Despite the luxury and power, Mochi begins to realize that no era can truly hold her curiosity forever. She returns to the bookstore, appearing just as mysteriously as she vanished. Though her owner is baffled, Mochi resumes her cozy life... until the next page turns.