 When Hiro is done training, he and Kaito discover that Ando, thinking that Kaito had convinced Hiro to return to Japan, bought a nagamaki and has left to confront Sylar alone.In "How to Stop an Exploding Man" Hiro teleports to Isaac's loft to find Ando about to be killed by Sylar, but manages to teleport them both out of danger and back to Japan.Hiro switches weapons with Ando, claiming that "'It is not the sword.