Long ago, it was a time when humans admired the universe and were full of pioneering spirit. Countries around the world built new cities on various planets in the solar system, and many people lived there in peace. One of Japan's new prefectures built on Mars is the "4th Tokyo". In the special economic zone of this city, Kirishina City, there is a top-notch company "Kirishina Corporation" famous for its aerospace business. This company is expanding its market in various fields and also operates a private school called "Kirishina Science and Technology Academy". This alone is already special, but there are even more shining classes in the academy. During the day, you study hard as a student at the academy, and after school, you go to work as an employee at the company and participate in an important project called the development of an advanced test rocket. That is the "Kirishina Corporation Advanced Technology Development Department Education Development Office" - commonly known as "A-TEC". The young genius engineer Kaito Sera, who serves as the head of this department, is also a teacher of A-TEC students at school and is affectionately (?) called the passionate rocket teacher. The story begins with a transfer student transferring to A-TEC. A-TEC welcomes a new partner, but on the way to Mars, a transfer student is kidnapped. Kaito, who believes that they are the only ones who can overcome this crisis, and together with the members of A-TEC, launches an unprecedented rescue operation.