Plum, as her family calls her, is a tiger-striped cat that lives with Miss Nakari, a single mother to her teenage son, Taku. Plum can understand what people say to her, and she can even tell what's in their minds. She also has many friends among the neighbourhood cats. All is well in her everyday life, until the day a mischievous kitten named Snowball joins Plum's happy household. Will the naughty little newcomer turn Plum's world completely topsy-turvy? Or will Snowball make her life even sweeter?"[Volume 4:] Plum and Snowball enjoy the seasons! Fall inspires them to write haiku and with winter comes the holidays of Christmas, New Year's, and Valentine's Day. Meanwhile, in the warm months of years past, Plum gets lost in the bustle of spring cleaning!