The sound comes from Doraemon, the long-running Japanese series created by Fujiko F. Fujio, and is tied to one of the robot cat's most famous gadgets, the Anywhere Door. In Spanish-speaking fandom the gadget is widely called the Puerta Magica, a pink door that lets characters travel instantly to any place they imagine. Clips of its magical chime have been shared on soundboards and in fan edits for years, where the effect now works as a shorthand for teleportation, wish fulfilment and impossible convenience in memes far beyond the original show.