World's Finest Assassin Gets Reincarnated In Another World As an Aristocrat Light Novel Sc Vol 01

When a great assassin is reborn in another world, he finds himself the heir to a long line of killers from the shadows. With both his modern-day knowledge and experience and the special magic and techniques of this new world, he could very well become the most unstoppable assassin in history?! For readers ages 13 and up.