Detective Conan Movie 21: The Crimson Love Letter

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Alternative Titles

Synonyms: Detective Conan Movie 21: Karakurenai no Love Letter
Japanese: 劇場版『名探偵コナン から紅の恋歌』
German: Detektiv Conan FIlm 21: Der purpurrote Liebesbrief
Spanish: Detective Conan Película 21: La Carta de Amor escarlata
French: Detective Conan Film 21: La Lettre d'Amour Ecarlate
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Type: Movie
Episodes: 1
Status: Finished Airing
Aired: Apr 15, 2017
Producers: None found, add some
Licensors: Discotek Media
Source: Manga
Genres: ActionAction, DramaDrama, MysteryMystery, RomanceRomance
Themes: DetectiveDetective, HistoricalHistorical
Duration: 1 hr. 51 min.
Rating: PG-13 - Teens 13 or older


Score: 7.671 (scored by 1593215,932 users)
1 indicates a weighted score.
Ranked: #12092
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #3821
Members: 29,628
Favorites: 39

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Ranked #1209Popularity #3821Members 29,628
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A bombing case at Nichiuri TV in autumn. The Satsuki Cup, which crowns the winner of Japan's Hyakunin Isshu, is currently being filmed inside the facility. The incident results in a big commotion and, while the building is burning to ashes, the only people left inside are Heiji and Kazuha. They get rescued just in time by Conan, who rushes to the scene. Both the identity and purposes of the bomber are unknown.

While confusion takes over due to the explosion, Conan meets a mysterious beautiful girl who claims she is "Heiji's fiancée". Her name is Momiji Ooka and she is the Kyoto High School champion of the Karuta game. As fate would have it, Kazuha is going to face Momiji in the Hyakunin Isshu, so she begins to train with the help of Heiji's mother, Shizuka, who is a skilled Karuta player.

At the same time, in a Japanese house in Arashiyama, Kyoto's outskirts, the reigning Satsuki Cup champion is murdered. Pictures of the crime scene reveal Momji's presence. Additionally, several Karuta cards were spread around the victim.

Conan and Heiji, along with the Osaka and Kyoto police departments, begin their investigation on the Satsuki Cup and the related murder case. As the inquiry goes on, they come across a secret connected with the Hyakunin Isshu.

(Source: Detective Conan Wiki)


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Characters & Voice Actors


Urakami, Keiko
Sound Director
Urakami, Yasuyuki
Sound Director


Opening Theme

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May 31, 2017
Every year, my friend and I go to our local cinema to watch the latest instalment of the Detective Conan franchise. We’ve been doing this since 2014, going through the movies whether good or bad.

I entered the cinema with fingers crossed and hoped for the best. After the disaster that was the 20th movie I was cautiously optimistic about this one, and while a small part of me was reluctant to watch it, the squealing fan-girl within me pushed me to give it a chance.

And so fast forward several days later – I can still recall the utter relief that rushed through me ...
Nov 12, 2017
Mixed Feelings
I'm very surprised this movie is getting so much love. I found it to be one of the worst DC movies in a while. The mystery was boring, regardless of whether you knew Karuta. You could see a lot of the plot twists coming from a mile away. It felt like a mystery they could have told in the anime with 2 episodes. The heavy focus on Heiji and Kazuha was completely unnecessary. Any DC fan knows that their romance was never going to develop in any meaningful way in any movie. As usual, the action scenes were also longer than they need to ...
Nov 11, 2017
Mixed Feelings
This has to be my least favorite Detective Conan film. The film focuses far too much in the romance aspect than necessary. I understand the film is called Crimson Love Letter but I found the romance to be boring and typical. There is no point in exploring the Heiji and Kazuha yet unexpressed love story because we know they are not going to confess in this film. The subplot with Heiji and Momiji went nowhere as expected. The side characters such as Mikiko Hiramoto were not used to their full capacity. Also, there seems to be less detective work in this movie than usual. Conan ...

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Recent Forum Discussion

Poll: Detective Conan Movie 21: The Crimson Love Letter Episode 1 Discussion
Magiarca - May 18, 2017
29 replies by Rithic »»
Jul 23, 2022 10:40 PM
Did you guys watch the movie recently?
yying0303 - Sep 3, 2017
6 replies by Mayuka »»
Oct 22, 2017 12:41 AM
Detective Conan Movie 21 - Teaser HD + visual
AllenVonStein - Nov 26, 2016
22 replies by Ran17 »»
May 13, 2017 7:21 AM
Detective Conan Movie 21 official PV
AllenVonStein - Mar 11, 2017
0 replies by AllenVonStein »»
Mar 11, 2017 4:32 PM
It’s time to ditch the text file.
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