Personality & Character
Hayato was one of Amuro's neighbors and was close friends with Amuro and Fraw too. Short and stocky and with a tendency towards insecurity, Hayato often measured himself against his friend Amuro's accomplishments.
One Year War
During the Zeon infiltration of Side 7, Hayato drives his car on his way to be evacuated as all Side 7 citizens were ordered to, he's spotted by some Zeon pilots. Fraw goes outside to find her neighbor Hayato Kobayashi and is frustrated that Hayato didn't warn Amuro of the evacuation, he simply responds by bitterly commenting that if military engineers like Amuro's father hadn't come to the colony, they wouldn't need to evacuate.
He escapes with his friends on board the White Base and his home colony is destroyed, when Char infiltrated the hangar on White Base Hayato assisted in trying to shoot him down. Hayato was later assigned as a soldier on the ship by Bright Noa.
He eventually started co-piloting the Guntank alongside Ryu Jose, acting as the gunner while Ryu acted as pilot. After Ryu's tragically heroic death to save Amuro from Crowley Hamon, Hayato had to pilot the Guntank modified for use by one pilot, even during the latter part of the story in which the White Base joins the main Federal fleet up in space.
In the last part of the second compilation movie, Soldiers of Sorrow, Hayato was assigned to a second Guncannon (C-109) which he piloted all the way through the third movie, Encounters in Space. It's at this part of the story that Hayato confessed his hopeless struggle to be as good a pilot as Amuro to Fraw Bow, which serves as a precursor scene to the two becoming slightly more romantically involved as the final part of the story played out.
In the novelization of Mobile Suit Gundam, Hayato is one of Amuro's fellow cadets and is a backup pilot. When Ryu is killed, he takes over the other Guncannon, but still feels jealousy of Amuro's skill and power. Unlike the anime, he never tells Fraw Bow of his insecurities and ends up dying during the Battle of A Baoa Qu.
By U.C. 0087, Hayato had married Fraw Bow, who was pregnant by this time, and adopted the White Base's kid mascots Katz, Letz and Kikka. He was also the leader of the Earth-based anti-Titans group, Karaba, and the owner of the Kennedy Space Museum.
First Neo Zeon War
Hayato was eventually killed in Mobile Suit ZZ Gundam by Neo Zeon ace Rakan Dahkaran, when Hayato was assisting AEUG in an attempt to rescue the civilians of Dublin when the Neo Zeon had targeted the city with a Colony Drop.
- Unlike some of the other mobile suit pilots in Gundam, he is not a Newtype. This is symbolized by his name, which comes from that of a Japanese infantry hero of the Second World War. Some characters in first Gundam who do become Newtypes have names taken from Japanese fighter aircraft of that war.