Ultraman Ace (ウルトラマンA（エース）, Urutoraman Ēsu), also known as Ultraman A, is the fifth of the Ultra Brothers to arrive on Earth. He brought a revolution, as being the first Ultra to possess two human hosts at the same time. He arrived on Earth to guard it from the evil clitches of the diabolical Yapool, who aimed at conquering Earth, using diabolical monsters created by him. Despite being a great warrior, his female host, Yoko, died, he only stood with Seiji, but he always fought in his heart like if he was with her.
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