After securing a string of hard‑won triumphs in Tochigi, Saitama and Ibaraki, the crew behind Project D—an amateur street‑driving collective headed by former racer and master strategist Ryousuke Takahashi—Takumi Fujiwara and Keisuke Takahashi must now elevate the squad to Kanagawa, the famed heartland of illegal racing. Their challengers, representatives from Kanagawa"s top three street‑racing outfits, have devised a sophisticated plan dubbed the "Four Lines of Defense" to halt Project D"s aspirations once and for all.
At the same time, Takumi senses he must sharpen his driving to surpass the narrow win over Toshiya Joushima that barely slipped through his fingers. The decisive moment has arrived for Project D, carrying the hopes of Gunma Prefecture; can they outmaneuver Kanagawa"s unexpected tactics and prove their mettle? In the neon‑lit streets of Yokohama, where rival crews lurk in shadowed corners and the city"s pulse beats like a drum, as night sky turns into racing arena.