What If There Were Superpowers in Thermonuclear War?

In the 1930s, the sun experienced an astonishing flash, killing billions of people and mutating a small number of people into people with superpowers. In order to calm the chaotic social order, the United Nations decided that all superpowers must perform lifelong military service to serve the country. Since then, the international situation has changed dramatically, and the contradiction between the two major groups, the United States and the Republic, has become increasingly acute. Finally, in 2038, the United States took the lead in launching a nuclear assault on the Republic, and a full-scale thermonuclear war broke out. The male protagonist of this work, Yi Zhixing, is an ordinary sophomore student. He chose to lie down and die under the intense involution. The only person who gave him motivation in life was a beautiful senior student in the long-distance running club. What Yi Zhixing didn't know was that the senior sister was also a person with abilities. At the end of the war, how should he choose to survive in the end? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.