The Heishi, more known as the Taira clan, is the main antagonist group of the Genji game series and most powerful warrior family in Japan. Together, they try to gain control over Japan and the Amahagane.
The Heishi antagonize Yoshitsune and his friends throughout their adventures. Their goal is to kill Yoshitsune and all of the Tamayori Clan and steal all of their Amahagane to create the strongest and most powerful Amahagane in the world. But their plans fail when Yoshitsune and Benkei defeat both Kiyomori and his brother Kagekiyo Taira leaders of the Heishi clan. The Heishi regroup and make a second attempt on the Amahagane only to find failure at the end.