Description：After being rescued by Wu (Fukushi Sota), the arrogant stray cat Nana (Lucky Seven) lives a happy cat life under the care of Wu, the shit shoveling master. The cat and the cat have spent a few years of warm time together, but one day Wu suddenly wants to send Nana away to someone else for foster care. Before Nana can react, Wu takes her on a journey. Passing through Hokkaido, crossing Mount Fuji, visiting old friends, Wu's unknown past is also revealed one by one. Until the end, Nana learned the truth about why Wu wanted to send her away, but she still stayed with Wu.