Slashed-up stickers of Gunma's teams is the hot pursuit of the invading Emperor team. The hot-headed Seiji Iwaki has challenged Takumi to a race on Mount Akina, overflowing with confidence that an old Eight-Six has nothing against his Mitsubishi Lancer Evolution. But what does it mean when team leader, Kyoichi Sudo, advises Seiji to do "Simulation 3"? On the other side, Bunta has acquired a new engine for the Eight-Six, but he will only give it if Takumi loses. How will this battle end?