In 2026, Japan remains isolated under the Edo Shogunate. Within rigid social hierarchies, three individuals, regarded as the dregs of society, meet in a prison cell destined for a fateful encounter. They join the dueling video platform "KILLTUBE" to seek fortune and win their freedom in a segregated world. In an era known as the "Age of Great Duels," where immense wealth can be amassed simply by defeating the strong, they face discrimination from samurai and merchants seeking power and authority. As they shatter conventional limits and claim victory after victory, they rise in popularity, becoming celebrated celebrities of their time. However, just as they reach the peak of their fame, they uncover the hidden truth behind "KILLTUBE"...