Min-soo is about to get married when his fiancée suddenly admits that she is allergic to dogs. Now the guy's best friend, the golden retriever Rooney, needs a new family. With the help of his cousin and social media, Min-soo starts looking for a new home for Rooney.
Perpetually single Frankie decides to give up on men in favor of going all-in as a “dog mom" to her adopted dog, Tucker. But sparks fly when Frankie meets Jack, the veterinarian who rescues her dog from near death. They seem destined to be together, but there's one problem: Jack is already engaged.
Kat is a woman who struggles every day against society and her mother to prove that she can still live a happy and fulfilling life despite still being single at 39. Which is why she recently spent her entire savings to open a cat café in Louisville, Kentucky.
Kanda Fuyuki is a world-famous pianist who has been keeping his life busy after his wife's death. One day, Fuyuki meets an unsold cat, Fukumaru, at a pet store. Fuyuki is not good with animals but decides to get Fukumaru after being attracted by it. Since then, Fuyuki's life changes as Fukumaru starts living with him.