The Regressed Son of a Duke is an Assassin

Cyan Vert, the duke’s illegitimate son and the empire’s most feared assassin, has always lived in the shadow of his righteous older brother.
After years of loyalty, he is ultimately betrayed by the very person he admired and faces a deadly end.
However, just before death claims him, Cyan awakens and finds himself returned to his childhood.
Now reborn as a young lord with all his past memories intact, he refuses to repeat his old life.
This time, Cyan is determined to grow stronger, carve his own path, and step out from everyone’s shadow.