小猫波波在一个纸箱里发现了一只被遗弃在屋檐下的小狗。起初，波波表现得很冷淡漠然，但当大雨倾盆而下时，波波勇敢地用自己的身体为小狗遮风挡雨，整夜…

Popo, a cat, finds a puppy abandoned in a cardboard box under the eaves. At first, Popo acts cold and indifferent, but when heavy rain begins, the cat bravely shields the puppy from the storm and spends the night keeping it warm beneath its belly.

By the next morning, a bond has formed between them. They begin facing the harsh life of stray animals together—Popo suppressing its own hunger to give the puppy its prey, even sneaking into a supermarket in search of food. Eventually, with the kindness and help of people around them, the two manage to get something to eat. As they cuddle together beneath the setting sun, they develop a deep and genuine bond that transcends species.