One day, in Sakura town, the slightly tipsy Satou Moe stumbles into a round cushion-shaped thing that turns out to be the cat Poyo. It was a fated encounter, so Moe adopts the stray. Many small daily-life adventures await the Satou family: Moe, her brother Hide (a high school student), father Shigeru (a farmer) and the mysterious, at times fast, high-jumping, gentle and very cute Poyo, who even likes to take baths.