Ai Yu from the Lonely Tower

In the future of another world, humans combine the power of magic and technology, using magic to drive machinery to transform the human body, opening a new era of prosthetics. Later, with the change of power, the Third World War finally broke out. After suffering from the war, mankind finally completed the unification of mankind under the leadership of the World Government. The story takes place 27 years after the establishment of the world government. The story experienced by Ai Yu, a survivor of Zengjin Guta.