Fans of Final Fantasy have come to expect a few things from the series. There will be rich storytelling, groundbreaking graphics, and interesting takes on combat in each game. Despite Final Fantasy's insistence on making each game unique and stand on its own, there will always be a few consistencies. Each game will have some artwork from Yoshitaka Amano, there will be Chocobos, Moogles will make an appearance, and there will always be a character named Cid that players will meet.
Source：https://www.cbr.com/final-fantasy-every-cid-appearance/
