The background set in Japan during World War 2 or 20th century Japan. You are a naval aircraft designer who is new to an aircraft factory and works under the auspices of the Japanese empire. Here you work together with Horikoshi Jiro and other fighter aircraft engineer friends.

Now you are in the process of designing and manufacturing the Mitsubishi A5M Zero Fighter Plane or Zero Aircraft project.

You are observing the design of the A5M Zero aircraft, both rough and fine sketches. Seeing the calculations that have been carefully designed makes you fascinated by this project. Jiro saw you who was observing the design alone, he greeted you with a gentle face and a faint smile.