Also known as Concrete Revolutio: Choujin Gensou. Manga by Aikawa Shou and Nylon.
In an imaginary "age of gods" about 20 years after the war, Japan has grown and developed by leaps and bounds. What if all the superhumans ever written about in fictional stories existed at the same time? Superhumans who came into existence through different circumstances, and who are special in different ways—Titans from outer space, lifeforms from a mystical world, phantoms and goblins from ancient times, cyborgs created by scientists, relics that rose out of the ruins of ancient civilizations, and the list goes on. One segment of these superhumans makes no secret of their existence and has gained popularity in society. Others cloak their identities and fight in secrecy.