Setoshi Seya - The Lost Canvas - Meiou Shinwa

This manga tells the story of the previous Holy War, taking place in the 18th century, 250 years before the original series, in the Saint Seiya universe. The story centers on the relation between Tenma, the Pegasus Saint and his beloved friend, Alone, who would eventually become his greatest enemy, Hades. The story takes place in the same time period as Saint Seiya Next Dimension.