My Dear Detective: Mitsuko's Case Files

My Dear Detective: Mitsuko's Case Files
First tankōbon volume cover
きみは謎解きのマシェリ
(Kimi wa Nazotoki no Masheri)
Genre
Manga
Written byNatsumi Ito
Published byFutabasha
English publisher
ImprintAction Comics
Magazine
  • Manga Action
  • (May 18, 2021–May 21, 2024)
  • Web Comic Action
  • (October 18, 2024–October 17, 2025)
Original runMay 18, 2021 – October 17, 2025
Volumes9

My Dear Detective: Mitsuko's Case Files (きみは謎解きのマシェリ, Kimi wa Nazotoki no Masheri) is a Japanese manga series written and illustrated by Natsumi Ito. It was serialized on Futabasha's seinen manga magazine Manga Action and on the Web Comic Action website from May 2021 to October 2025.

Publication

Written and illustrated by Natsumi Ito, My Dear Detective: Mitsuko's Case Files began serialization on Futabasha's seinen manga magazine Manga Action on May 18, 2021.[1] The series ended serialization in Manga Action on May 21, 2024, and was transferred to the Web Comic Action website resuming on October 18, 2024, and ending on October 17, 2025.[2][3][4] Its chapters were collected in nine tankōbon volumes released from October 28, 2021, to December 25, 2025.[5][6]

During their panel at Anime Expo 2022, KiraKira Media announced that they added the series to their Azuki website and app.[7] On May 15, 2024, Seven Seas Entertainment announced that they would begin to release volumes of the series in October 2024.[8]

No. Original release date Original ISBN English release date English ISBN
1October 28, 2021[5]978-4-575-85650-7October 8, 2024[9]979-8-89160-256-4
2March 28, 2022[10]978-4-575-85704-7February 4, 2025[11]979-8-89160-744-6
3September 28, 2022[12]978-4-575-85764-1June 10, 2025[13]979-8-89160-755-2
4March 28, 2023[14]978-4-575-85826-6October 14, 2025[15]979-8-89160-758-3
5September 28, 2023[16]978-4-575-85894-5February 17, 2026[17]979-8-89373-685-4
6March 28, 2024[18]978-4-575-85950-8June 23, 2026[19]979-8-89373-686-1
7November 28, 2024[20]978-4-575-86029-0——
8May 29, 2025[21]978-4-575-86096-2——
9December 25, 2025[6]978-4-575-86177-8——

Reception

MyAnimeList users recommended the series in 2023 for its unique story and art.[22]

References

  1. ^ a b c 女探偵とイケメン大学生の昭和ミステリー、糸なつみの新作が連載開始. Comic Natalie (in Japanese). Natasha, Inc. May 18, 2021. Archived from the original on January 27, 2024. Retrieved January 27, 2024.
  2. ^ Cayanan, Joanna (May 25, 2024). "My Dear Detective: Mitsuko's Case Files Manga Moves to Web Action Website". Anime News Network. Retrieved June 7, 2024.
  3. ^ Cayanan, Joanna (September 16, 2024). "Kengo Mizutani, Anajiro, Uketsu, Kikō Aiba Launch New Manga on Web Action Website". Anime News Network. Retrieved December 2, 2024.
  4. ^ Cayanan, Joanna (June 2, 2025). "Natsumi Ito's My Dear Detective Manga Ends in Next Volume". Anime News Network. Retrieved June 14, 2025.
  5. ^ a b きみは謎解きのマシェリ 1 (in Japanese). Futabasha. Archived from the original on September 27, 2022. Retrieved January 27, 2024.
  6. ^ a b きみは謎解きのマシェリ 9 完 (in Japanese). Futabasha. Retrieved November 1, 2025.
  7. ^ Hazra, Adriana (July 4, 2022). "Azuki Releases 'Turning the Tables on the Seatmate Killer!,' More Manga in August 2022". Anime News Network. Archived from the original on January 25, 2024. Retrieved January 27, 2024.
  8. ^ "Seven Seas Licenses MY DEAR DETECTIVE: MITSUKO'S CASE FILES Manga Series". Seven Seas Entertainment. May 15, 2024. Retrieved May 15, 2024.
  9. ^ "My Dear Detective: Mitsuko's Case Files Vol. 1". Seven Seas Entertainment. Retrieved June 7, 2024.
  10. ^ きみは謎解きのマシェリ 2 (in Japanese). Futabasha. Archived from the original on August 18, 2022. Retrieved January 27, 2024.
  11. ^ "My Dear Detective: Mitsuko's Case Files Vol. 2". Seven Seas Entertainment. Retrieved September 29, 2024.
  12. ^ きみは謎解きのマシェリ 3 (in Japanese). Futabasha. Retrieved January 27, 2024.
  13. ^ "My Dear Detective: Mitsuko's Case Files Vol. 3". Seven Seas Entertainment. Retrieved January 27, 2025.
  14. ^ きみは謎解きのマシェリ 4 (in Japanese). Futabasha. Archived from the original on March 31, 2023. Retrieved January 27, 2024.
  15. ^ "My Dear Detective: Mitsuko's Case Files Vol. 4". Seven Seas Entertainment. Retrieved May 10, 2025.
  16. ^ きみは謎解きのマシェリ 5 (in Japanese). Futabasha. Retrieved January 27, 2024.
  17. ^ "My Dear Detective: Mitsuko's Case Files Vol. 5". Seven Seas Entertainment. Retrieved August 25, 2025.
  18. ^ きみは謎解きのマシェリ 6 (in Japanese). Futabasha. Retrieved May 15, 2024.
  19. ^ "My Dear Detective: Mitsuko's Case Files Vol. 6". Seven Seas Entertainment. Retrieved November 1, 2025.
  20. ^ きみは謎解きのマシェリ 7 (in Japanese). Futabasha. Retrieved September 29, 2024.
  21. ^ きみは謎解きのマシェリ 8 (in Japanese). Futabasha. Retrieved April 10, 2025.
  22. ^ Morrissy, Kim (March 31, 2023). "MyAnimeList Releases Ultimate List of Manga Recommendations". Anime News Network. Archived from the original on April 24, 2023. Retrieved January 27, 2024.

Further reading

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