My Hero Academia introduces viewers to one of the most powerful villains known as Nomu, who managed to defeat the heroes in the anime series. However, Nomu is not a living being, but just a tool created using technology and quirk power implanted into a human body by a genius scientist named Dr. Garaki, who supports All for One’s movement.
In other words, these strong Nomu’s lacked a will to act on their own and were created solely to fight for their master’s interests. The creation of Nomu was done inside a research laboratory by the mastermind Dr. Garaki, who is a key factor in controlling the powers of the villains.
In the My Hero Academia anime, Nomu allied with All for One becomes a significant nuisance for the heroes. But Nomu was not designed to be sold as a weapon, and its production was created solely to fulfil the interests of All for One.
The strength of Nomu has been derived from the quirks and represents the stolen power from dead bodies that have been exploited. Hence, Nomu has become an outstanding warrior and gives an edge to the All for One group. Dr. Garaki and Tomura are the prime sources behind the creation of such powerful villains.
To defeat Nomu, the heroes require an equal amount of strength – a combination of quirk and science. Therefore, the creation of such technology to fight Nomu must be done by a genius like Dr. Garaki, or they must kidnap him to discover the weakness of their deadly weapon.
Furthermore, if Dr. Garaki creates Nomu using unethical and inhumane methods that go against the ideology of the heroes themselves, then it is safe to say that Nomu cannot be used by the heroes. Although some theories suggest that Nomu will obey its creator, this does not mean that the heroes could use it as their weapon.
Nomu is a combination of quirk and technological science, which was designed to kill from the beginning for All for One’s benefit. Therefore, Nomu is a deadly weapon, not a living creature with free will.