"Swallowtail Butterfly" tells the story of a couple (panda BoBo and rooster ToTo) on a rescue journey in the unfamiliar town of Kirin Fish Town. The protagonists BoBo and ToTo have a fresh and simple appearance, with a heartwarming plot that reveals a persistent belief in love and dreams. "Swallowtail Butterfly" handles the visual details to perfection, with even the faint rays of light filtering through the clouds filled with a dreamlike quality. The BoBo-ToTo series animation "Swallowtail Butterfly" is divided into four acts: "Deadly Nightshade Fruit," "Kirin Fish," "Rootless Water," and "Swallowtail Butterfly." BoBo's prototype is a panda, and ToTo's prototype is a chicken. Their images are fresh and simple, expressing a steadfast dedication to love and dreams within a warm and straightforward storyline.