Ace Altman is the lightest and super warrior among the Otto brothers, so he is called the trump card in Altman. Aesop Altman is the protagonist of the round valley special drama Aesop Altman. In order to protect the earth from the superpowers manipulated by the alien Yapool, Ace came to the earth from the M78 nebula and gave his strength to two young people, the Big Dipper and Minami Yuko, to fight against the terrible superpowers with the comrades of the superpowers attack team TAC.