Naoto Sho (翔 直人 Shō Naoto) is the main protagonist of the series Gridman. A kind-hearted boy who loves computers. After the attacks by Kahn Digifer began to occur, he was contacted by Gridman and sent the transformation device known as the "Acceptor".
By pressing a blue button on the Accessor and shouting "ACCESS FLASH!", Naoto would be sent into the 'Computer World' and merge with Gridman to fight in the Computer World against the monster viruses sent by Takeshi and Kahn Digifer. Naoto's attire is changed to a blue jumpsuit and he gets sucked into the computer where he connects with Gridman and becomes one with him before entering the fray.