The World's Finest Assassin Gets Reincarnated in Another World as an Aristocrat (also know as Sekai Saikou no Ansatsusha, Isekai Kizoku ni Tensei Suru) Season 1 (2021) is released on Oct 06, 2021. Watch The World's Finest Assassin Gets Reincarnated in Another World as an Aristocrat online - the Japanese Animation TV series from Japan. The World's Finest Assassin Gets Reincarnated in Another World as an Aristocrat is directed by Masafumi Tamura and created by Katsuhiko Takayama with Kenji Akabane and Reina Ueda.