 At the start, Hiro is only able to speak Japanese, relying on Ando as his translator, but as the series progresses, his English slowly develops.Hiro's Blog, maintained by NBC and written from Hiro's point of view, was updated after each new episode aired, usually about the events of the episode.At the start of the series, Hiro's power is developed enough for him to turn the second-hand of his clock back one second.