Doraemon began as a Japanese manga series in 1969, created by Fujiko F. Fujio, and grew into one of Japan's longest-running and most beloved anime franchises, following a robotic cat sent back in time to help a young boy named Nobita. Its episode openings became instantly familiar to generations of viewers across Asia and beyond through television broadcasts and later streaming and short-form video. On soundboards and social media, the opening is now reused as a quick nostalgia cue, instantly signalling a lighthearted, innocent tone before a joke or memory.