Fusoya, also known as FuSoYa or Fusuya, is a temporary playable character in Final Fantasy IV who also appears in Final Fantasy IV: The After Years. He is a Lunarian from the Red Moon, and it is his job to watch over the Lunarians' sleep.
Fusoya is an old man wearing blue and purple robes of varying shades. His true age is unknown, but as he reached Earth when humanity was still evolving he may be one of the oldest characters in the entire Final Fantasy series. He has long silver hair and a long beard with bushy eyebrows, and has light blue eyes.
Fusoya is wise and well-spoken, possessing knowledge of magic and the universe far beyond what he reveals, and like the other Lunarians he awaits the day when humans evolve to the point their two races can co-exist in peace. Upon slaying Zemus, he expresses pity at the great powers Zemus wielded being used for evil ends.