Ando is Hiro Nakamura best friend. The two of them set off to save the world. Ando now has superpowers.
Season 1
Ando is introduced into the show as the skeptic friend of Hiro Nakamura. He works at Yamagato Industries with Hiro, and when we first see him working, he is actually on Niki Sanders's strip website. When Hiro discovers his powers, Ando is completely skeptic, and doesn't believe Hiro has them.
Hiro continues to try and convince Ando that he has powers, but Ando still doesn't believe him. When the two go to a bar, Hiro tries to show Ando that he has powers by teleporting into the girls bathroom. Ando goes to get beer, and when he comes back, Hiro is being thrown out. Outside, the two argue, with Ando questioning why Hiro wants to be so different?
Ando is finally convinced that Hiro has powers when Hiro brings a comic book by Issac Mendez from the future, and Hiro saves a girl with them. He then agrees to go on a trip with Hiro to America, following the comic book. They hire a Nissan Versa and head for Las Vagas. The two spend time at a casino, where Ando tells Hiro to use his powers to get them money, which he does but they get thrown out of the hotel. After attending another poker game, the two argue and seperate, and Ando goes to see Niki Sanders.
Season 3
When Hiro travels to the future, he sees himself and Future Ando confronting each other on the a stairway, with Ando demanding the one half of the formula that Hiro has acquired. When Hiro pulls out his sword and attacks, Future Ando blasts Hiro with a bolt of lightning, immobilizing him. Future Ando takes the formula, and moves on.
Powers
During the first two volumes, Ando is a normal human with no abilities. In the opening episode of the third season, "The Second Coming", Hiro Nakamura travels into the future and witnesses Ando using an ability described by the writers simply as "red lightning". In "Dual", Ando injects himself with the formula, revealing that the red lightning amplifies the abilities of others. He demonstrates this unintentionally by boosting the range of Matt Parkman's telepathy to cover all of New York City and increasing Daphne Millbrook's super speed to such an extent that she is able to break the spacetime barrier. In the episode "Cold Snap", Ando learns to use his power offensively, channeling his energy into powerful bolts from his hands after having contact with Baby Matt Parkman. As seen later in "I Am Sylar", Ando has managed to produce and control a major amount of energy as he attacks agents inside a van with a heavy blast without damaging Hiro or the van itself.
