Killed Again, Mr. Detective? Anime Premieres on April 2

The opening theme song was also revealed.

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Kadokawa has announced the TV anime adaptation of Teniwoha and Riichu’s Killed Again, Mr. Detective? (Mata Korosarete Shimatta no desu ne, Tantei-sama) light novel series will premiere on April 2 on TBS at 25:58 / April 3 at 1:58 a.m. JST. A new trailer also confirms that Multidimensional Control Mechanism YODAKA will perform the opening theme song “Stardust Eureka.”

Killed Again Mr Detective anime key visual
© 2026/てにをは/KADOKAWA/またころ製作委員会

The cast of Killed Again, Mr. Detective? includes:

  • Rikuya Yasuda as Sakuya Outsuki
  • Shion Wakayama as Lilithea
  • Yoshino Aoyama as Yuriu Haigamine
  • Katsuyuki Konishi as Kaoruta Sozorogi
  • Rie Kugimiya as Shardina
  • Yūki Takada as Fido & Belka

Takashi Naoya directs the series at Lifenfilms. Mio Inoue is in charge of the series scripts, Akiko Kumada is the character designer, Shūhei Mutsuki is the music composer.

Additional staff members include:

  • Color Key Artist: Emiko Onodera
  • Art Director: Kuniaki Nemoto
  • Art: Kusanagi
  • Compositing Director of Photography: Hisayoshi Yamamoto
  • Sound Director: Kōhei Yoshida
  • Sound Production: INSPION Edge
  • Music Production: Nichion

Kadokawa launched the novel series with the first volume in August 2021, and the sixth volume will release on November 25. Inaba launched a manga adaptation of Killed Again, Mr. Detective? on Kadokawa’s Dra Dra Flat website in July 2022, and the manga ran until the second compiled book volume in March 2024. Yen Press publishes the manga in English.

Lastly, here’s a story synopsis of the manga adaptation, via Yen Press:

Sakuya Otsuki is the son of a legendary detective, working to follow in his father’s footsteps with his assistant, Lilithea. However, something’s different about this high-school sleuth. Wherever he goes, he always manages to get himself entangled in his cases—as a murder victim! When Sakuya is tasked to infiltrate a luxury cruise ship, he finds himself killed once again. But every time he reopens his eyes, Lilithea is there by his side, ready to help him get to the bottom of the mystery…

Soul Kiwami
Soul Kiwami
Raul Ochoa, a.k.a. Soul Kiwami, is the Managing Editor of Final Weapon with six years of writing/editing experience and a former News Writer at Game Rant. Raul is passionate about the Japanese gaming and anime/manga industries, and he's a huge fan of Nintendo Switch, PC hardware, JRPGs, and fighting games. business email: [email protected] | Muck Rack: https://muckrack.com/raul-landaverde-1

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