On the whimsical Whale Island, a peculiar being tumbles from the sky, causing chaos by flattening a frog teacher at the school. This enigmatic creature, Puchan, not only restores the teacher's form miraculously but also wins over the initially wary classmates with his charm. Embraced by the school community, Puchan embarks on a series of misadventures, navigating each challenge uniquely with his inquisitive nature.