Short answer: read the Ameku Takao series in publication order. There is exactly one exception, Sphere no Shitenshi, which is chronologically the earliest story in the series.
The complication is that “Complete Edition” reissues and brand-new volumes are interleaved, and the subtitle alternates between “Suiri Karute” and “Jiken Karute”. Looking at a shelf tells you nothing about the order. I had the same problem starting out.
This article lays out all 22 volumes of the Jitsugyo no Nihon Sha Bunko edition in publication order, marking which are short story collections, which are novels, and which are reissues. Each links to my review.
Today, December 4, 2026, the 22nd volume Ikusagami no Hiho is released, bringing the run to 22 books.
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Three things to know first
| The confusion | The answer |
|---|---|
| “Suiri Karute” against “Jiken Karute”? | Suiri Karute = short story collection, Jiken Karute = novel. Not two separate storylines |
| What is a “Complete Edition”? | The older Shincho Bunko nex series reissued by Jitsugyo no Nihon Sha with additions and new material |
| What order? | Publication order. The only exception is Sphere no Shitenshi |
Suiri Karute against Jiken Karute
The subtitle tells you the format. Not knowing this makes the shifts between volumes confusing.
| Subtitle | Format | How it reads |
|---|---|---|
| Suiri Karute | Short stories | Each case resolves in one story. Easy in short sittings |
| Jiken Karute | Novel | One case followed to the end. Sustained tension |
Suiri Karute volumes collect stories from the magazines Shosetsu Shincho and yom yom with new material added; Jiken Karute volumes are novels written for paperback. They alternate almost throughout, so reading in order alternates format.
If a volume feels different in texture from the last one, check the subtitle. The author has not changed approach.
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What “Complete Edition” means
The series began in October 2014 under Shincho Bunko nex, serialised in Shosetsu Shincho and yom yom.
From October 2023, Jitsugyo no Nihon Sha Bunko began reissuing that run as “Complete Editions”, with additions and newly written material — the first volume, for instance, gains a new short story.
Start with the Complete Editions. There is no need to hunt down the older printings, and the Complete Editions are what is in circulation.
Entirely new volumes appear alongside them: 13 Complete Editions plus 9 new books make 22.
All 22 volumes in publication order
Sorted by release date. Several months released two or three at once, which is why the titles alone give no clue.
| # | Title | Released | Format | Type |
|---|---|---|---|---|
| 1 | 天久鷹央の推理カルテ | Oct 6, 2023 | Short stories | Complete Edition |
| 2 | 吸血鬼の原罪 | Oct 6, 2023 | Novel | New (original) |
| 3 | ファントムの病棟 | Nov 9, 2023 | Short stories | Complete Edition |
| 4 | スフィアの死天使 | Nov 9, 2023 | Novel | Complete Edition |
| 5 | 密室のパラノイア | Dec 8, 2023 | Short stories | Complete Edition |
| 6 | 幻影の手術室 | Dec 8, 2023 | Novel | Complete Edition |
| 7 | 悲恋のシンドローム | Jan 13, 2024 | Short stories | Complete Edition |
| 8 | 甦る殺人者 | Jan 13, 2024 | Novel | Complete Edition |
| 9 | 神秘のセラピスト | Feb 5, 2024 | Short stories | Complete Edition |
| 10 | 火焔の凶器 | Feb 5, 2024 | Novel | Complete Edition |
| 11 | 羅針盤の殺意 | Feb 5, 2024 | Short stories | New |
| 12 | 神話の密室 | Mar 7, 2024 | Short stories | Complete Edition |
| 13 | 魔弾の射手 | Mar 7, 2024 | Novel | Complete Edition |
| 14 | 久遠の檻 | Apr 5, 2024 | Novel | Complete Edition |
| 15 | 生命の略奪者 | Apr 5, 2024 | Novel | Complete Edition |
| 16 | 絶対零度のテロル | Apr 5, 2024 | Novel | New |
| 17 | 猛毒のプリズン | Oct 4, 2024 | Novel | New |
| 18 | 呪いのシンプトム | Dec 6, 2024 | Short stories | New |
| 19 | 鏡面のエリクサー | Apr 4, 2025 | Novel | New |
| 20 | 血脈のナイトメア | Dec 5, 2025 | Novel | New |
| 21 | アノマリーの追憶 | Apr 3, 2026 | Short stories | New |
| 22 | 戦神の秘宝 (not yet read) | Dec 4, 2026 | Novel | New |
Sixteen volumes appeared in the seven months from October 2023 to April 2024. That burst is the reason nobody can tell where to start. Think of that period as one short story collection plus one novel per month and it resolves.
From October 2024 onward only new volumes appear, at a calmer pace.
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Only Sphere no Shitenshi breaks the chronology
Publication order matches story chronology, with one exception: Sphere no Shitenshi (fourth).
It covers a case in July, just after Yu Takanashi is assigned to General Diagnostics. The first story of volume one, “Awa”, takes place four months after that assignment.
Strictly by chronology, then, Sphere no Shitenshi comes first.
| Approach | Recommendation |
|---|---|
| Publication order (start with volume one) | Recommended. The setup arrives at the right pace |
| Chronological order (start with Sphere no Shitenshi) | Possible, but it means opening with a novel |
I would take publication order. Sphere no Shitenshi is a novel driven by the pressure of a closed ward — a demanding entry point. Volume one is a short story collection, which suits getting used to Takao and to General Diagnostics.
Where to start
New readers
Start with volume one, the Complete Edition. It is a short story collection, so it reads in sections.
That one book tells you whether to continue. Takao divides opinion; if the distance does not close here, it will not close later.
Coming from the anime or drama
Both adaptations centre on the Suiri Karute side, starting from volume one. The source material starts in the same place, so volume one again.
If you would rather start with a novel
Kyuketsuki no Genzai is an option — an original novel released the same day as volume one, written to be readable without the older series.
Adaptations
The series had passed 3.9 million copies as of May 2026, with anime, drama and manga adaptations.
| TV anime | January 2 to April 3, 2025, 12 episodes / TOKYO MX and others / director: Kazuya Iwata / studio: project No.9 / music: fox capture plan |
|---|---|
| TV drama | April 22 to June 24, 2025, 9 episodes / TV Asahi / screenplay: Hideya Hamada / produced by TV Asahi and Toei |
| Manga 1 | Ameku Takao no Suiri Karute, art by Hiroki Ohara / Shinchosha, 4 volumes (2016-2018) |
| Manga 2 | Sphere no Shitenshi, art by Eri Takenashi / Kodansha, 3 volumes (2024-2026) |
Characters and setting
| Takao Ameku (27) | Deputy director and head of General Diagnostics. She has Asperger’s syndrome and savant traits, and diagnoses through extraordinary recall and calculation |
|---|---|
| Yu Takanashi (29) | The narrator. A former surgeon reassigned to General Diagnostics as a trainee internist |
| Mai Konoike (25) | A resident who admires Takao. Anomaly no Tsuioku is narrated from her point of view |
| General Diagnostics | Founded by Takao’s father to resolve undiagnosable patients and inexplicable incidents. A single-storey red brick building on the hospital roof |
Narrating through Takanashi rather than Takao is what keeps the series readable. The author, Mikito Chinen, was born in Okinawa in 1978, trained as an internist at Jikei University School of Medicine, and has been nominated four times for the Japan Booksellers’ Award.
What 21 volumes taught me
The one thing this series does consistently is put the phenomenon first and the name second.
The “curse”, the “vampire”, the “demon”, the “memory of an organ” — none arrive as supernatural claims. An unexplained symptom appears, the people around it attach a convenient label, and Takao neither denies nor affirms the label while accumulating facts.
And an explanation never erases why someone saw meaning there. That aftertaste is common to every volume.
Read for clean resolution and it will disappoint. Read because irresolution is interesting, and 22 books hold the same texture.
Summary
- Read the Ameku Takao series in publication order
- Suiri Karute = short stories, Jiken Karute = novel. Not separate storylines
- “Complete Edition” = the Shincho Bunko nex run reissued with additions. Start there
- 13 Complete Editions plus 9 new volumes make 22 books as of December 4, 2026
- 16 volumes landed in seven months between October 2023 and April 2024 — hence the confusion
- Only Sphere no Shitenshi is chronologically earlier, but it is a demanding entry point
- New readers: volume one. It tells you whether to continue
- An anime (Jan-Apr 2025, 12 episodes) and a drama (Apr-Jun 2025, 9 episodes) have both aired
- Throughout: phenomenon first, name second, and irresolution after the explanation
