In the 1960s, British-made lightweight open sports cars such as the Lotus Elan, MG MGB and Austin Healey were extremely popular in Europe and the USA. However, in the 1970s, emission regulations and revised crash safety regulations began to weed out these cars from the market, and by the 1980s, lightweight open sports cars themselves had almost disappeared from the market. It was against this backdrop that a new sports car was planned by Mazda North America. In the 1980s, a member of the development department at Mazda's North American technical centre said, "If only there was a lightweight car like the MG", and this sparked the development of a lightweight open-air sports car by volunteers, mainly from Mazda staff in North America. In 1986, the project by the volunteers was approved by Mazda's planning committee and the development project was officially launched. However, at the start of the project, it was far from smooth sailing, as the number of people working on the Roadster (MX-5) was small and there was much opposition to the project within Mazda. Despite these circumstances, Mazda's engineers poured their utmost passion into the development of the MX-5. The development concept was "Jinba Ittai" (rider and horse as one), and Mazda's engineers poured all the elements they could think of to bring driving pleasure, including a 50:50 front-rear weight distribution, a compact body size with an FR drive layout, a vehicle weight of less than one tonne, a low centre of gravity and a low inertia moment. On the other hand, in order to generate sales volume, a low price had to be achieved. Therefore, the existing engine and gearbox were used to reduce costs and achieve an affordable selling price. However, no compromises were made in the chassis to realise 'Jinba Ittai' (rider and horse as one), such as the use of Mazda's first high-cost double wishbone suspension front and rear. When sales began in 1989, the Roadster (MX-5) became extremely popular all over the world thanks to its affordable price and excellent handling. This was a phenomenal sales record for a two-seater convertible. As a result, a wide variety of followers were sold by many manufacturers worldwide from the 1990s onwards. Later, due to profitability and market needs, many manufacturers other than Mazda stopped selling two-seater open sports cars, or increased the price and body size of the two-seater open cars they sold. On the other hand, Mazda continued to produce the Roadster (MX-5) and maintained its development policy of 'Jinba Ittai' (rider and horse as one), and kept the lightweight, affordable, lightweight open-air sports car. The Roadster (MX-5), which continued to be a lightweight open sports car through model changes, became a car loved by many enthusiasts around the world. As a result, in April 2016, when the fourth generation, the ND model, was manufactured, the total sales of all generations reached one million units, setting an unprecedented milestone for a convertible car. This vehicle is the NB model, the second generation of the Roadster (MX-5). While inheriting the engine, chassis and other components from the first-generation NA model, the NB model featured improved crash safety, a more rigid chassis and an all-round improvement to the engine and other components. The simple mechanism makes it extremely easy to maintain and durable, and coupled with its handling characteristics, which respond to the driver's operation, it has become a typical car for sportsman drivers in Japan to hone their skills on circuits and in gymkhanas.

Koyomi Araragi, a high school boy living in a certain town, accidentally saves a beautiful female vampire from dying, and in return, Koyomi Araragi becomes a vampire himself. Her presence changes the peaceful everyday life of Koyomi Araragi and the people around her.

A lovely young girl with blonde hair and eyes. However, her true identity is that of a tall, fair-skinned female vampire known as the "King of Weirdness". Although the vampire hunters have taken away her former overwhelming power, she still has the power of the "King of Weird" inside her. While she often speaks highly of herself, she has a sensitive and beautiful heart. Her favourite food is doughnuts.