Fourteen (14歳, Fōtīn) is a horror, science fiction manga by Kazuo Umezu.
He learns that all mankind and the planet will come to an end when children born that year reach the age of 14.
However, Chicken George, falling for the beautiful Barbra, a minion of the rich Rose and American vice president Martha Gorman, decides to stay on Earth and chooses to de-evolve by separating the left and right hemispheres of his brain.
The governments for each country were preparing a secret plan to select specific children to escape from Earth, but that came to an end due to violent mobs.
Finally, as mankind comes to an end, humanity's true form began to manifest: monsters.