Cyan Vert is the illegitimate son of a powerful duke and secretly trained as one of the empire’s deadliest assassins. Forced to live in the shadow of his righteous and celebrated brother, Cyan serves loyally—until he is betrayed and left to die. At the moment of his execution, he awakens in the past as a child once more. Armed with memories of betrayal and mastery in assassination, Cyan chooses a different path. Determined to no longer be a disposable shadow, he begins reshaping his future with precision, ambition, and lethal intent.
The Regressed Son of the Duke Is an Assassin delivers a tightly focused regression story built around betrayal and self-determination. Cyan Vert’s rebirth is not about reclaiming honor, but about seizing control of a life that was once dictated by family politics and hypocrisy.
What sets the series apart is its emphasis on stealth and strategy rather than brute force. Cyan’s assassin background shapes his choices, pushing the story toward careful planning, manipulation, and decisive strikes from the shadows. His growth feels deliberate, driven by foresight rather than luck.
While it follows familiar noble regression beats, its execution remains sharp and satisfying. Readers who enjoy assassin protagonists, calculated revenge, and second-chance narratives rooted in strategy will find this manhwa particularly engaging.
