The Reincarnated Assassin is a Genius Swordsman

In his first life, he was nothing more than a disposable tool—a chained dog, an emotionless assassin stripped of everything. Betrayed and brutally murdered by the very master he served, he thought the same darkness would be darkness. But fate has granted him a second chance. Reborn as the youngest son of the continent's most powerful family, he now possesses the knowledge of a master killer and the blood of a nobility. To protect those he loves and carve a path of bloody revenge, he trades his dagger for a blade. The legend of the genius swordsman begins now. Dive into Chapter 1 and witness the rise of a master!