Sayonara Gacchan! Uchuu kara no Tazune Hito

While playing baseball, Arale finds a dog in the bushes and brings it to Senbei. She is determined to keep it, and Senbei gives in, even though he has childhood trauma and hates dogs. Arale names the animal Poop, and together with Gatchan, the three of them have a wonderful time.