Arthur, a 19-year-old gamer obsessed with a gritty, crime-filled video game series, suddenly finds himself transmigrated into the body of 12-year-old Ryuji Kanzaki during the chaotic 1980s bubble economy in Kamagasaki—a notorious district filled with criminal activities, corruption, and poverty. With no time to process the change, Arthur quickly learns that his new life as Ryuji is not going to be easy.
In a world where survival depends on power, influence, and cunning, Arthur realizes that his cheat is a strange one—his body is built like a seasoned fighter, similar to an infamous character from his games. Though he’s stuck in a kid’s body, his physical abilities and instincts are those of an experienced street brawler. Armed with the knowledge of his past life, street smarts, and this new cheat, Arthur must navigate Kamagasaki’s dangerous underworld, rise through the ranks of its criminal organizations, and carve out a future while uncovering the dark secrets of the era.
But as Arthur gets more entangled in the power struggles of the city, he discovers that survival isn’t just about being strong—it’s about playing the game of alliances, betrayal, and ambition. Can he outsmart the dangerous figures around him, or will he become just another casualty of the unforgiving streets?