Yamagato Industries/Season Four
For more about Yamagato Industries, see the main article.
Hiro and Ando sit in an office, talking about their new business. Kimiko comes in and yells at them for spending ¥50 million on it, and blames Ando for the idea. She leaves, and Ando tells Hiro she has hated him ever since he accidentally spilled a Slushy on her at a carnival. The phone rings and Hiro answers it.
After helping their first client, Ando wheels Hiro back to the office on a cart, because he has become frozen in time due to his malfunctioning ability. He snaps Hiro out of it, and Hiro admits to him that he has a brain tumor, and that it is inoperable. Ando suggest he goes back in time to fix it, but Hiro refuses. He looks a photograph of when he, Ando, and Kimiko went to the carnival, and remembers a fortune teller who told him he would become a hero, and that is what started him on his path. Ando says if he goes back, he can stop himself from receiving that fortune, and he might save himself. Hiro refuses again, but teleports against his will into the past.
After changing the past, Hiro returns to the office and asks Ando if anything has changed, but Ando says nothing has. Hiro then sees Ando and Kimiko kiss, and realizes it worked. He tries to convince Ando that he changed the past so that Ando and Kimiko were always together, and he says he now realizes he can change the past in small ways in order to make up for his mistakes.
Ando and Kimiko tell Hiro they are getting married. Ando wonders if Hiro will be alive for the wedding, and says he should tell Kimkio the truth. They receive a call on the Dial a Hero line, and Hiro answers. A Yamagato employee named Tadashi tells him he is about to jump of the roof. Hiro rushes up to stop him but fails. He attempts 46 more times to stop him, and finally succeeds on his 47th try. He then goes downstairs and admits to Kimiko he is dying, but then clutches his head and teleports away, leaving Kimiko staring at Ando in disbelief.
The police bring Hiro to Ando at Yamagato. He tells them that Hiro is not crazy, but has a brain tumor. Ando attempts to make sense of what Hiro is saying, and Kimiko insists that they take him to a neurosurgeon. When Hiro mentions the danger room, Ando says that is the room where he keeps him comic books. In his storage room, Ando manages to decipher that Hiro is talking about a insane asylum in Florida. Hiro thanks him, and Ando admits that he is just the sidekick.
In Hiro's third blog post, "A Sign!", Hiro learns of a new room in the bottom of Yamagato Industries that only his fahter and Kenjiro knew about. Apparently, Kaito only used this room for deep storage and it hasn't been opened in twenty years.
In Hiro's fourth blog post, "Blast from the Past", Hiro reports that Kenjiro likes to listen to jazz on his lunch break. He reports that they have continued to go through the new room, the Danger Room, to continue on with research of his father's past.
In Hiro's eighth blog post, "More Strange Video", Hiro blogs that Ando has talked Hiro out of going back to Three Mile Island in 1978 and suggested he continue looking through the Danger Room for more clues.
In Hiro's tenth blog post, "Numbers Numbers Everywhere", Hiro reports that Ando and Kenjiro are still hard at work on the Danger Room database in between their lunch breaks and Call of Duty marathons.
In Hiro's eleventh blog post, "Old School Fun & Games", Hiro reports that Kenjiro lost his pet cricket Aiko. Therefore, Kenjiro looked all over Yamagato to find Aiko, including the air vents. Kenjiro found an old game program in the vents.