Ultraman Absolute Ajax is an Ultraman from the future. It is a new generation of powerful warriors born from the combination of the strongest of the Absolute clan and the women of the Ultra clan, and has the ultimate power beyond the legendary four mysteries, but because the body is currently in the growth period shortly after birth, the power cannot be fully released. In the future, the Absolutes and the Ottes signed a peace treaty, and the two communities exchanged friendship and helped each other. Later, the entire universe was turbulent due to the invasion of unknown powerhouses in other dimensions, and the Ultra clan and the Absolute clan joined forces to suffer heavy casualties, and only Ultraman Absolute Ajax, the son of Absolute Ajath and Ultraman Rix, could defeat this unknown invader. But Ultraman Ajax is still young and his power has not yet awakened, and although he has the power of the Ultra brothers, he is still too weak in the face of the unknown. At the last moment of the destruction of the universe of life and death, the four legendary Ultraman and the warriors of the two clans who survived gathered the remaining power, and part of it turned into power and integrated it into the body of Little Ajax, and part of it was used to open up the space-time channel, sending the last hope of the universe, Ultraman Little Ajax, to the past time and space, and when he grew stronger, he changed this tragedy.