About

The Watanabe clan, descendants of samurai, faced hardship following the dissolution of the samurai in 1871, suffering through poverty and despair. By the time Oni was born, the family had no choice but to abandon their noble heritage and join a criminal organization. Young Oni rarely saw his father, Akira, who had become the oyabun (boss) of the syndicate. Since his mother died giving birth to him, Oni was raised by his grandfather, Tatsuki. Oni displayed exceptional natural talent as a warrior and eventually rose to command his own unit. However, after proving his courage in numerous overseas operations, Oni was seized by a desire to return to Japan, protect his homeland from threats, and restore his family's honor, just as his ancestors had done. Upon returning, Oni was immediately scouted by the SAT (Special Assault Team), Japan's counter-terrorism unit, which inevitably put him in direct conflict with his father at the top of the criminal underworld. However, due to his father's vast influence, Oni was dishonorably discharged from his position. Tatsuki used to tell Oni legendary tales of their ancestors' exploits on the battlefield. Through these stories, Oni established his own unwavering code of discipline and sought to make his family name shine once more. On his 17th birthday, Oni's father tried to induce him to join the syndicate. But Oni, unwilling to follow in his father's footsteps, left with nothing but a precious sword strapped to his back. Oni displayed exceptional natural talent as a warrior and eventually rose to command his own unit. However, after proving his courage in numerous overseas operations, Oni was seized by a desire to return to Japan, protect his homeland from threats, and restore his family's honor, just as his ancestors had done. Upon returning, Oni was immediately scouted by the SAT (Special Assault Team), Japan's counter-terrorism unit, which inevitably put him in direct conflict with his father at the top of the criminal underworld. However, due to his father's vast influence, Oni was dishonorably discharged from his position. Now, Oni operates as a mercenary, fighting his father and those who violate the samurai code, hoping that one day the Watanabe clan will rise again. Seeking a fresh start with nowhere to go, Oni enlisted in the Japan Self-Defense Forces using a fake identity. He did this partly because he was young for enlistment and partly to hide himself from his father and the organization. Thanks to his grandfather's teachings, Oni caught the attention of superiors looking for talent for a new elite special forces unit called the SOG (Special Operations Group). Training alongside the U.S. Green Berets and Delta Force, the SOG became a unique Japanese presence unseen since the samurai were disbanded centuries ago—a special operations unit capable of operating worldwide.