Yoshiyuki Tomino gave the "Gundam" main character the name Amuro believing such word did not exist. However, three months after the show aired, Tomino received a letter from Sunrise informing him there was an island named Amuro in Okinawa. As a result of the series' sponsors being toy manufacturers, Amuro was made a teenager which required an explanation for how he is able to control such complex machine. As a result, Amuro was announced as a new type of being as reflected in how society needs this new type of human being. Tomino considered Amuro "kind of simple for the potential that human beings can reach in the future." Nevertheless, Amuro was introduced as an ordinary man in contrast to his rival Char Aznable. As a result, he found Amuro hard to write as he was meant to oppose Char whom Tomino found more interesting. Character designer Yoshikazu Yasuhiko stated that Amuro's misrelationship with the members of the crew of the White Base and his mother were outstanding by the time the series premiered in contrast to previous conventional heroes who would make up with each other.