Second generation of the Fit (Jazz), Honda's flagship model. It was a global strategic car sold worldwide and manufactured in eight countries, with manufacturing components sourced from a variety of countries. Honda has long been promoting the relocation of its manufacturing bases and head office functions outside Japan, and the second-generation Fit is the result of this, and is a car that embodies the current globalisation of Honda and the Japanese automobile industry. The Fit continues to use the centre tank layout (the fuel tank is located under the floor in the middle of the car body) from its predecessor, which minimises the tendency of the fuel tank to squeeze the interior space of the car, and achieves an interior space that is not desirable for the size of the body. The Fit, on the other hand, is often thought of as a simple utility vehicle with a spacious interior, but it boasts a low centre of gravity thanks to its centre tank layout and considerable cornering performance thanks to its compact, lightweight chassis. In Japan, the Fit is recommended as a car for improving driving skills by racing drivers and many other enthusiasts, and has straightforward manoeuvrability and excellent driving qualities.

Yuna Yuki, 13 years old. She joins the Yuusha Club. Yuna Yuki wakes up in the morning, gets ready, goes to school, takes classes, does club activities, plays with friends... She is a second year junior high school student living such a normal life. The club she belongs to is the 'Yusha Club'. What are its activities? What is the mysterious entity Vertex? A story of girls in the 300th year of the Divine Century.

Classmate and best friend of Yuna. A good friend and understanding person. Their houses are next door to each other and they often go out together. She is elegant and calm, but is also multi-talented in computers, baking and many other things, and can show a strong side.