Cellphone Investigator 7(2008)

Cellphone Investigator 7 is an anime series following Keita Amishima, a high schooler who discovers a hidden world of covert agents when he's recruited by UNDER ANCHOR, a secret organization fighting cyber terrorism. Paired with Seven, an artificial intelligence housed in a smartphone called a Phone Braver, Keita embarks on dangerous missions to stop cybercriminals and digital threats. As the duo works to protect the digital world, they face an unexpected enemy: Zero One, a rogue Phone Braver with its own agenda. Blending action, technology, and coming-of-age themes, Cellphone Investigator 7 explores what happens when an ordinary teenager is thrust into an extraordinary conflict between human agents and artificial intelligence in the battle against cyber warfare.