ArtemisKo

Kamishirou Koushirou lived an ordinary, peaceful life—until his eighteenth birthday shattered everything he knew. His parents died in a sudden accident, and before he could even grieve, a mysterious figure arrived to take him in—his estranged grandfather, Kamishirou Genichirou, the feared boss of the notorious Asakusa Group, one of the most powerful yakuza groups in Japan.

Forced into this unfamiliar world of crime and secrecy, Koushirou struggled to adjust to life in the Asakusa Mansion, a sprawling estate filled with dangerous men who now called him “Young Master.” But it wasn’t the criminal underworld that unsettled him the most—it was the strange changes happening within his own body.

That fateful day, everything became clear. As he faced an ambush by a rival gang, his body erupted into blue flames, consuming everything in his path. Terrified yet strangely drawn to the power, he soon discovered the truth—he was the last living descendant of the Great Hotenmaru, an ancient warrior god feared for his mastery over blue celestial fire.

Now, Koushirou finds himself at the crossroads of two worlds—the ruthless yakuza underworld and the mystical legacy of the Tengu gods. As he learns to control his newfound powers, he discovered that the Asakusa Group has long protected an ancient Tengu relic capable of sealing or unleashing a forgotten calamity. And there are those—both human and supernatural—who would do anything to claim it.

With betrayal lurking in the shadows and an unknown enemy hunting him, Koushirou must decide: Will he follow the dark path of the yakuza, or embrace his divine heritage to forge his own destiny?

But time is running out. The Blue Flames of the Great Hotenmaru have awakened... and with them, an ancient force that should have remained buried.

Yakuza Exorcist

- Kyoji's right-hand man/assistant

- Asakusa's grim ripper - kills people by sneaking at night through sounds. Able to instill fear by sound alone.

- Wields technique 'Silent Killing'

Shirogane