# The World's Finest Assassin Gets Reincarnated in Another World as an Aristocrat (2021)

> A legendary assassin is reborn as an aristocrat's eldest son in a fantasy world and is tasked with killing the prophesied Hero.

Canonical page: https://ember.film/tv/98792

## Facts

- Seasons: 2
- Episodes: 12
- Episode runtime: 24 min
- Status: Returning Series
- Genres: animation, action, fantasy
- Network: AT-X
- Cast: Reina Ueda, Yuuki Takada, Shino Shimoji, Toshiyuki Morikawa, Chiaki Takahashi, Yukari Tamura, Junpei Morita, Kenji Akabane
- TMDB rating: 7.3/10
- IMDb: https://www.imdb.com/title/tt14061838/

## Ember's analysis

- Pacing: brisk
- Intensity: moderate
- Complexity: simple
- Violence: moderate
- Tone: irreverent, brisk, dark, playful

## What critics say

Audiences rate it positively as a stylish assassin fantasy, though reviewers find it leans on familiar isekai tropes and fan-service content.

## Synopsis

The World's Finest Assassin Gets Reincarnated in Another World as an Aristocrat (2021) is a Japanese anime television series produced by SILVER LINK. and Studio Palette and aired on AT-X. Its single 12-episode season follows the greatest assassin of the modern world, reborn as the eldest son of a family of aristocrat assassins in a fantasy realm. Voiced by Reina Ueda as Dia, Yuuki Takada as Tarte, and Toshiyuki Morikawa as Cian, the characters orbit a goddess who sets his one condition: kill the Hero prophesied to destroy the world. The engine is a lethal professional applying hard-won modern tradecraft and secret family techniques to each assignment, with episodes built around plotting, infiltration and combat. The tone is brisk and action-forward, with a light, irreverent streak that sits alongside more uncomfortable material. Fans of Re:Zero Starting Life in Another World, Mushoku Tensei: Jobless Reincarnation and Sword Art Online will find a familiar isekai landscape, though the show's appeal rests on its competent, ruthless protagonist rather than sprawling worldbuilding. Its tone and content are mature, and viewers should expect adult themes throughout the story.

## Shows like The World's Finest Assassin Gets Reincarnated in Another World as an Aristocrat

- [My Status as an Assassin Obviously Exceeds the Hero's (2025)](https://ember.film/tv/190517)
- [Dead Mount Death Play (2023)](https://ember.film/tv/135315)
- [Black Summoner (2022)](https://ember.film/tv/119885)
- [Reborn to Master the Blade: From Hero-King to Extraordinary Squire ♀ (2023)](https://ember.film/tv/121138)
- [The Stunned Hero and the Assassin Princesses (2025)](https://ember.film/tv/189657)
- [Backstabbed in a Backwater Dungeon: My Trusted Companions Tried to Kill Me, But Thanks to the Gift of an Unlimited Gacha I Got LVL 9999 Friends and Am Out For Revenge on My Former Party Members and the World (2025)](https://ember.film/tv/185129)
- [The Aristocrat's Otherworldly Adventure: Serving Gods Who Go Too Far (2023)](https://ember.film/tv/129722)
- [Demon Lord, Retry! (2019)](https://ember.film/tv/74745)
- [Failure Frame: I Became the Strongest and Annihilated Everything with Low-Level Spells (2024)](https://ember.film/tv/161073)
- [Clevatess (2025)](https://ember.film/tv/172868)

---

Site overview: https://ember.film/llms.txt