In 1980s Yokosuka, Japan, a young martial artist named Ryo Hazuki returns home to witness his father’s murder at the hands of a mysterious man named Lan Di, who steals an ancient artifact known as the Dragon Mirror. Driven by vengeance and a burning need for answers, Ryo embarks on a globe-trotting investigation that takes him from the neon-lit streets of his hometown to the gritty docks of Hong Kong and beyond. Along the way, he encounters a colorful cast of allies and adversaries, including the resourceful street vendor Nozomi Harasaki and the enigmatic martial artist Shenhua, who holds clues to the artifact’s true purpose. This action-packed anime blends martial arts choreography with a deeply personal revenge story, weaving in themes of honor, destiny, and the weight of family legacy. As Ryo uncovers a sprawling conspiracy linked to ancient Chinese lore, he must hone his fighting skills and unravel cryptic puzzles to confront the truth behind his father’s death.