Ms. Isshiki Wants to Know About Love

Ms. Isshiki Wants to Know About Love
First tankōbon volume cover
一式さんは恋を知りたい。
(Isshiki-san wa Koi o Shiritai)
GenreRomantic comedy[1]
Manga
Rinna Keibu wa Kokyū ga Dekinai
Written byAyune Araragi
Published byIchijinsha
ImprintRex Comics
MagazineMonthly Comic Rex
Original runOctober 27, 2016 – December 27, 2017
Volumes3
Manga
Written byAyune Araragi
Published byKadokawa Shoten
English publisher
ImprintKadokawa Comics A
MagazineMonthly Shōnen Ace
Original runJune 26, 2020 – present
Volumes9
Anime television series
Directed byKazuya Komai
Written byDeko Akao
StudioSakura Create

Ms. Isshiki Wants to Know About Love (一式さんは恋を知りたい。, Isshiki-san wa Koi o Shiritai) is a Japanese manga series written and illustrated by Ayune Araragi. It was originally serialized under the title Rinna Keibu wa Kokyū ga Dekinai (リンナ警部は呼吸ができない) in Ichijinsha's Monthly Comic Rex magazine between October 2016 and December 2017, with its chapters being collected into three volumes. It was then relaunched in Kadokawa Shoten's Monthly Shōnen Ace magazine in June 2020, with its chapters collected into nine volumes as of October 2025. An anime television series adaptation produced by Sakura Create has been announced.

Plot

The series follows Rinna Miliford Isshiki, a genius police inspector who is nicknamed "Steel-Faced Rinna". Known for her serious demeanor, recently she had seen herself feeling flustered when she is around police detective Meishi Rokutanda. Although she aims to continue showing her steel-faced facade, she cannot help but fall for Meishi's kindness. Wanting to get over her conflicted feelings, she decides to accept Meishi's offer of them becoming engaging in a fake relationship.

Characters

Rinna Miliford Isshiki (一式 リンナ ミルフォード, Isshiki Rinna Mirifōdo)
A police inspector known for her serious demeanor and high intelligence. She became a police inspector at the age of 17 thanks to her brilliance, having graduated at the top of the class. She is nicknamed Steel-Faced Rinna (鋼鉄のリンナ, Kōtetsu no Rinna) for her personality. She does not want to show her feelings to others, but finds difficulty in doing so after developing feelings for Meishi.
In Rinna Keibu wa Kokyū ga Dekinai, her name is Rinna Miliford (リンナ・ミルフォード, Rinna Mirifōdo), a police inspector working for the London police force.
Meishi Rokutanda (六反田 メイシ, Rokutanda Meishi)
A police detective and one of Rinna's subordinates. He becomes the object of Rinna's affection and offers to have a fake relationship with her to help her sort out her feelings.
In Rinna Keibu wa Kokyū ga Dekinai, his name is Meishi Leland (メイシ・リーランド, Meishi Rīrando), a detective working in London.

Media

Manga

The series was originally serialized under the title Rinna Keibu wa Kokyū ga Dekinai in Ichijinsha's Monthly Comic Rex magazine between October 27, 2016, and December 27, 2017. The series featured similar characters, but was set in London instead of Japan. The series was compiled into three tankōbon volumes between April 27, 2017, and January 27, 2018.[2]

Ayune Araragi relaunched the series in Kadokawa Shoten's Monthly Shōnen Ace magazine on June 26, 2020. The first tankōbon volume was released on December 25, 2020;[3][1] nine volumes have been released as of October 2025.[4] In March 2026, Yen Press announced that they had licensed the series for English publication, with the first volume set to release in September later in the year.[5]

Volumes

Rinna Keibu wa Kokyū ga Dekinai
No. Release date ISBN
1April 27, 2017[6]978-4-7580-6658-7
2January 27, 2018[7]978-4-7580-6685-3
3January 27, 2018[8]978-4-7580-6705-8
Ms. Isshiki Wants to Know About Love
No. Release date ISBN
1December 25, 2020[3]978-4-04-110932-8
2June 25, 2021[9]978-4-04-111476-6
3January 26, 2022[10]978-4-04-112199-3
4August 26, 2022[11]978-4-04-112200-6
5April 26, 2023[12]978-4-04-113628-7
6November 25, 2023[13]978-4-04-114357-5
7September 27, 2024[14]978-4-04-115390-1
8April 25, 2025[15]978-4-04-116139-5
9October 23, 2025[4]978-4-04-116694-9
10May 25, 2026[16]978-4-04-117438-8

Anime

An anime television series adaptation was announced on October 17, 2025.[17] It will be produced by Sakura Create and directed by Kazuya Komai, with series composition handled by Deko Akao and characters designed by Shōhei Hamaguchi.[18]

Reception

The series ranked fifth in a poll by the anime website Anime! Anime! on what manga series respondents wanted to see animated.[19]

References

  1. ^ a b 鋼鉄の二つ名持つエリート女性が恋でドキドキ「一式さんは恋を知りたい。」1巻. Comic Natalie (in Japanese). Natasha, Inc. December 26, 2020. Retrieved September 30, 2025.
  2. ^ 一迅社WEB | インフォメーションポータル | 書籍情報 | レーベル既刊一覧 | リンナ警部は呼吸ができない (in Japanese). Ichijinsha. Retrieved September 30, 2025.
  3. ^ a b 一式さんは恋を知りたい。 （１） (in Japanese). Kadokawa Corporation. Retrieved September 30, 2025.
  4. ^ a b 一式さんは恋を知りたい。 （9） (in Japanese). Kadokawa Corporation. Retrieved September 30, 2025.
  5. ^ Mateo, Alex (March 20, 2026). "Yen Press Licenses I'm Just in a Faux BL, Servant Beast, Spy Classroom 4th Period: Blazing Fire, More Manga". Anime News Network. Retrieved March 20, 2026.
  6. ^ リンナ警部は呼吸ができない (1) (in Japanese). Ichijinsha. Retrieved September 30, 2025.
  7. ^ リンナ警部は呼吸ができない (2) (in Japanese). Ichijinsha. Retrieved September 30, 2025.
  8. ^ リンナ警部は呼吸ができない (3) (in Japanese). Ichijinsha. Retrieved September 30, 2025.
  9. ^ 一式さんは恋を知りたい。 （２） (in Japanese). Kadokawa Corporation. Retrieved September 30, 2025.
  10. ^ 一式さんは恋を知りたい。 （３） (in Japanese). Kadokawa Corporation. Retrieved September 30, 2025.
  11. ^ 一式さんは恋を知りたい。 （４） (in Japanese). Kadokawa Corporation. Retrieved September 30, 2025.
  12. ^ 一式さんは恋を知りたい。 （５） (in Japanese). Kadokawa Corporation. Retrieved September 30, 2025.
  13. ^ 一式さんは恋を知りたい。 （６） (in Japanese). Kadokawa Corporation. Retrieved September 30, 2025.
  14. ^ 一式さんは恋を知りたい。 （７） (in Japanese). Kadokawa Corporation. Retrieved September 30, 2025.
  15. ^ 一式さんは恋を知りたい。 （８） (in Japanese). Kadokawa Corporation. Retrieved September 30, 2025.
  16. ^ 一式さんは恋を知りたい。 （10） (in Japanese). Kadokawa Corporation. Retrieved March 20, 2026.
  17. ^ Loo, Egan (October 17, 2025). "Isshiki-san wa Koi o Shiritai Romantic Comedy Manga Gets TV Anime". Anime News Network. Retrieved October 17, 2025.
  18. ^ Hodgkins, Crystalyn (February 14, 2026). "Isshiki-san wa Koi o Shiritai TV Anime Reveals Visual, Staff". Anime News Network. Retrieved February 14, 2026.
  19. ^ アニメ化してほしいマンガは？【未完結作品編】「乙女ゲー」「恋した人は…」「幼稚園WARS」…コミカライズ作品が続々！＜24年上半期版＞. Anime! Anime! (in Japanese). June 27, 2024. Retrieved September 30, 2025.
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