Mao? Watashide wa arimasen
When the demon king Kamikaze was defeated by the gods, he decided to kidnap 5 women and make them give birth to 5 children, one child was the presence of the concepts of destruction, time, concept, despair and flow, the hero Arthur knew about his intention so he attacked his castle but their intention failed, the demon king teleported those fetuses around the world, each world was a woman chosen to carry that fetus in their womb.
But there was an incident, that was the fetus representing destruction accidentally traveled through space and entered the womb of a woman in 1988.