12 Furlong no Chikushou Dou

Conquer the Japanese Derby! 12 furlongs―a 2,400-meter journey that has created numerous histories in horse racing and captivated people. A man is reincarnated―as a racehorse from a small local farm. His name is Satan Marukko. A chestnut-colored Thoroughbred with a distinctive round white star on his forehead. After consecutive victories in local horse races, trainer Kozumi Nada convinces the owner, Nakagawa, to enter him in central horse racing. "Marukko is a horse who will win the Derby." Having accumulated prize money, Marukko secures a ticket to the Japanese Derby. Riding him is veteran jockey Tomonori Tatekawa, a rider who has won numerous Group 1 races, but who carries the jinx of never having won the Japanese Derby―. "And now, the Japanese Derby, enter the main racecourse." And so, the fanfare sounds, and the gate to determine the generation's top horse opens. Welcome to a world swirling with money, pride, honor, and determination.

This is a passionate horse racing story about a man who became a racehorse and the people who are fascinated by this seemingly absurd horse.