In the 6th year of Enka, a scientist developed a device called Myther to design the ideal personality. Through this, people were trying to achieve their ideal selves and break away from their weak selves. However, behind the scenes, Myther crimes, in which people with corrupted personalities commit heinous crimes by illegally using Myther, have become a hidden social problem. Kyo, a member of the Special Intelligence Bureau under the direct control of the Japanese authorities, tackles the crime in secret. All for the sake of loyalty to the authorities...

Source: Kodansha (google translated)