The Regressed Son of a Duke is an Assassin Light Novel Description: Cyan Vert, the greatest assassin of the continent. After having been betrayed by his own brother, whom he had trusted all his life, he meets an pitiful end. If I were given another chance at life, I would live it differently. A life where I would achieve all the things I want, and trust only myself, without serving anyone else. That is how I was given a second chance at life. The Cyan Vert, a shadow who lived for others, is no more. I will now pave a path on my own, for myself! The Regressed Youngest Son Of The Duke Is An Assassin Novel, 회귀한 공작가의 막내도련님은 암살자