The official website for the television anime adaptation of Rui Tsukiyo and Reia’s The World’s Finest Assassin Gets Reincarnated in a Different World as an Aristocrat (Sekai Saikō no Ansatsusha, Isekai Kizoku ni Tensei Suru) light novels has announced that the anime’s premiere date has been pushed back from July 2021 to October 2021. The website explains pushing back the release date is due to “various circumstances.”
Masafumi Tamura is directing the anime at SILVER LINK and Studio Palette, and Katsuhiko Takayama is both writing and overseeing the series scripts. Eri Nagata is designing the characters.
The story of The World’s Finest Assassin Gets Reincarnated in a Different World as an Aristocrat is described as:
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.