Ota is the main teacher of the school and later the second-in-command of Exelion, the spaceship used as headquarters for missions in space. Ota completely trusts Noriko and her skills that will allow her to pilot the Gunbuster, an extremely powerful robot able to effectively contrast the aliens. Moreover, Ota was one of the crewmen of Noriko's father's ship; during the unlucky battle in which he died, admiral Takaya refused the last chance of escaping and let Ota go instead. Probably due to this, Koichiro holds Noriko in great esteem and trusts her. 

In the very near future, a race of huge, insect like aliens is discovered traveling the galaxy. These aliens seem dedicated to the eradication of the human species as it takes its first steps away from the solar system, and they are getting closer and closer to Earth. Humanity has responded by developing spacegoing battleships and giant fighting robots. These robots are piloted by the best and brightest of Earth's youth, picked from training schools around the world. 
The story begins in the year 2023, not long after the first battles with the aliens, and centers on young Noriko Takaya. Although Noriko's father was a famous Captain in the space fleet who was killed during one of the first battles of the war, her own talents as a pilot are questionable. Nonetheless, she has entered a training school. Through the series Noriko, joined by the beautiful and talented Kazumi Amano, will fight to overcome the trauma of war, the doubts of her peers, and her own lack of confidence. 
(Source: AniDB)

[Wiki (jp)](https://ja.wikipedia.org/wiki/若本規夫)

Used to work for the Tokyo Metropolitan Police Department Riot Police.

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This double feature comprises of Gunbuster and Die Buster (aka Gunbuster 2) condensed them into a single theatrical release told in two parts with a musical intermission in between. The first part, Gunbuster the Movie, condenses the six episodes of the original OVA into a 95-minute moviefeaturing a new 5.1 audio remix and a redub by the original Japanese cast. The second part, Die Buster the Movie, mixes large chunks of the second OVA series with a few altered or newly-animated scenes to create a truncated take on Nono's story. 
(Source: Anime News Network)

The science lessons are short "omake" bonus features originally present on the first two volumes. Each short lasts around two minutes, and stars super deformed versions of Noriko, Kazumi and the Coach explaining the various scientific aspects of the series. 
(Source: Wikipedia)

Comic Gunbuster is a compilation of short stories involving the main characters from "Aim for the Top" which take place during the time of the first OVA. Some of the stories include Kazumi Amano's marriage to Coach Ota and Noriko and Jung playing golf on the Moon. 
(Source: Anime News Network)

Extra science lessons included with the Gunbuster Blu-ray Box Complete Edition. These explain how the space ropeway works, and time dilation from near-lightspeed travel.

2 extra omake Science Lesson specials released on the LD-BOX set. Includes: Chapter 4+1 and Final Chapter.

Kouichirou Oota