New York Heroes Agency

In 2008, Afghanistan. Lin Zhou, an observer from Xavier's School, follows a military demonstration team from Stark Industries in search of a missing mutant. After the convoy is ambushed, he and Tony Stark fall into the hands of the Ten Rings, and a black shard appears in his palm, impossible to shake off. Deep in a stone chamber, crimson lightning illuminates the king's sword in the hands of an armored girl. "Saber, Mordred. Are you my Master?"