Leonardo da Vinci

Leonardo is the brilliant scientist of the Western Planet known as "the one who observes the world." He is a leading figure in the Renaissance that revived the legacy of the prehistoric civilizations such as the Ikusa Yoroi (Battle Armor). Leonardo goes with Jeanne Kaguya d'Arc on her journey to the Eastern Planet in a search for a "Star Messiah."

(Source: Nobunaga the Fool Wikia)