Currently available on 2 streaming services.

Streaming, rent, or buy The World's Finest Assassin Gets Reincarnated in Another World as an Aristocrat – Season 1:

Currently you are able to watch "The World's Finest Assassin Gets Reincarnated in Another World as an Aristocrat - Season 1" streaming on Netflix, Catchplay.

Cast

Kenji Akabane
Lugh (voice)
Reina Ueda
Dia (voice)
Yuuki Takada
Tarte (voice)
Shino Shimoji
Maha (voice)
Toshiyuki Morikawa
Cian (voice)
Chiaki Takahashi
Ethilu (voice)
Yukari Tamura
the Goddess (voice)
Junpei Morita
the Assassin (voice)