Ash, a young man who once thrived as a captain of the Imperial Knights and was even engaged to a noble lady, seemed to have a life that everyone envied.
However, one day, his engagement is abruptly annulled and he is expelled from the knight order. Disillusioned with everything, Ash leaves the Empire behind and journeys to a new land—the Kingdom of Rosebell.
Thanks to the power of its dungeons, the kingdom has achieved a level of prosperity that surpasses even the Empire. There, Ash begins anew as a hunter, quickly rising to fame through his overwhelming strength.
Meanwhile, back in the Empire, Ulka—a junior knight who deeply admired Ash—sets out for the Kingdom in pursuit of him.
A story of reversal and rebirth, where a colorless life is painted anew, now begins.