Ys (pronounced as /ˈiːs/) is a series of action RPGs developed by Nihon Falcom. The franchise started in 1987 when the first Ys title was released for Japanese PCs as Ys I: Ancient Ys Vanished. Since then, there have been numerous sequels, prequels, and spinoffs, the latest of which being Ys IX: Monstrum Nox. These games center around their main protagonist Adol Christin, and the many journeys he experiences as he travels the world searching for adventure. Adol values adventure above all else and loves to travel to new lands and learn all he can about them. It just so happens he repeatedly has to save these lands from whatever crisis is happening at the time, and he may or may not have to fight some gods on his way.