Synopsis: Mi-yeon, a struggling cafe owner, feels burdened by her ailing mother and a past heartbreak. One day, she encounters a helpless dog, whom she names Happy. Through caring for Happy, Mi-yeon discovers the unwavering love of her mother and the true meaning of happiness. Happy leads Mi-yeon to find solace in the kindness of others and the beauty of the world around her. In the end, Mi-yeon realizes that even in life's hardships, there is always room for happiness, and that Happy has brought her the greatest joy of all.
