Clay Lord: Master of Golems Vol. 2 (manga)

The Earthgaia clan, the royal family of golem craftsmen, are renowned through the realm for creating sentient automatons of the highest caliber.

As the last surviving member of the family, Clay is doing his best to carry on their legacy, despite having no memory of his past. Suddenly, an event forces him to recall the origin of his two golems, Kurogane and Shirogane. Perhaps some memories are best left forgotten!