Future Doomsday + Comprehensive Comic Vest.
Alien objects are rampant in the future world, and the last base city has also ushered in its end.
The delicate girl was selected by the traitors of the Government of Time, and used the abandoned Honmaru as a base. At the same time, she relied on its power to conquer different time and space dungeons and gain extraordinary power.
In order to see a bright future, the girl moved forward, constantly overcoming difficulties and obstacles, and finally returned to her hometown to coordinate the power of the base city and turn it into an unbreakable barrier.
There will eventually be a battle between the base city and the alien creatures. Survival or destruction depends on how the girl can turn things around.
Intention: As long as you have ideals, you can keep going no matter how hard it is.
