Up until the modern day, advancements of civilizations have made the Logos World too big to control texts down to their very concept.

Seeking to upset this fragile balance is a mogul and sorcerer named Sōgon Kenzaki, who creates monsters called the MJBK (Menace of Japanese with Biological Kinetic energy) who threaten the modern society.

To counter the MJBK, a group of young people blessed with the power of "Verbalism" is assembled by the organization DEAVA (Division of EArth Verbalism Ability) to pilot the vector machines, which are used to form the mechas dubbed "Aquarions", and among them, a boy and self-proclaimed savior named Akira Kaibuki living in Asagaya.

The minions of Sōgon, the MJBK are monsters formed from the Logos World upon a text receiving his mystical syringes spawned from his book of magic.

Upon reaching full power the MJBK will erase the concept of their meaning in the collective minds of humanity, irreparably damaging their ability to communicate and think.