During MF Bunko J’s Fall School Festival 2025 livestream, Kadokawa announced a 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 in April 2026. The TV anime series will air on the TBS channel in Japan.
The cast of Killed Again, Mr. Detective? includes Rikuya Yasuda as Sakuya Outsuki and Shion Wakayama as Lilithea.
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 published the manga’s first volume in English on August 26, and the second volume follows up on January 20, 2026.
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…
