An Observation Log of My Fiancée Who Calls Herself a Villainess
Japanese light novel series
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An Observation Log of My Fiancée Who Calls Herself a Villainess (Japanese: 自称悪役令嬢な婚約者の観察記録。, Hepburn: Jishō Akuyaku Reijō na Konyakusha no Kansatsu Kiroku) is a Japanese light novel series written by Shiki and illustrated by Wan Hachipisu. The series was originally posted as a web novel on the Shōsetsuka ni Narō website, before Shiki removed it in March 2017. AlphaPolis later published it as a light novel under their Regina Books imprint, releasing two volumes from May to September 2017. A manga adaptation illustrated by Natsume Hasumi was serialized on AlphaPolis' Regina manga website from May 2018 to August 2021 and was compiled in six volumes. A sequel series by Shiki and Hachipisu, titled An Observation Log of My Wife Who Calls Herself a Villainess (自称悪役令嬢な妻の観察記録。, Jishō Akuyaku Reijō na Tsuma no Kansatsu Kiroku), began publication under the same imprint in April 2022, with a manga adaptation by Hasumi starting on the same website in March 2022. An anime television series adaptation produced by Ashi Productions premiered in April 2026.
| An Observation Log of My Fiancée Who Calls Herself a Villainess | |
First light novel volume cover | |
| 自称悪役令嬢な婚約者の観察記録。 (Jishō Akuyaku Reijō na Konyakusha no Kansatsu Kiroku) | |
|---|---|
| Genre | |
| Novel series | |
| Written by | Shiki |
| Published by |
|
| Original run | 2016 – 2024 |
| Light novel | |
| Observation Records of My Fiancée: The Misadventures of a Self-Proclaimed Villainess | |
| Written by | Shiki |
| Illustrated by | Wan Hachipisu |
| Published by | AlphaPolis |
| English publisher |
|
| Imprint | Regina Books |
| Original run | May 4, 2017 – September 5, 2017 |
| Volumes | 2 |
| Manga | |
| Written by | Shiki |
| Illustrated by | Natsume Hasumi |
| Published by | AlphaPolis |
| English publisher | Alpha Manga |
| Imprint | Regina Comics |
| Magazine | Regina |
| Original run | May 7, 2018 – August 6, 2021 |
| Volumes | 6 |
| Light novel | |
| Observation Records of My Wife: The Misadventures of a Self-Proclaimed Villainess | |
| Written by | Shiki |
| Illustrated by | Wan Hachipisu |
| Published by | AlphaPolis |
| English publisher |
|
| Imprint | Regina Books |
| Original run | April 5, 2022 – present |
| Volumes | 5 |
| Manga | |
| An Observation Log of My Wife Who Calls Herself a Villainess | |
| Written by | Shiki |
| Illustrated by | Natsume Hasumi |
| Published by | AlphaPolis |
| English publisher | Alpha Manga |
| Imprint | Regina Comics |
| Magazine | Regina |
| Original run | March 29, 2022 – present |
| Volumes | 3 |
| Anime television series | |
| Directed by | Junichi Yamamoto |
| Written by | Akiko Inoue |
| Music by |
|
| Studio | Ashi Productions |
| Licensed by | Crunchyroll |
| Original network | Tokyo MX, BS11, Sun TV |
| Original run | April 6, 2026 – present |
| Episodes | 5 |
Premise
Cecil, who is numb to emotions, becomes interested in his fiancée, Tia, whom claims to be a reincarnator who was reborn as the villainess of an otome game. Thinking she is simply crazy at first, Cecil plays along; until events that Tia foretold begin happening as she said. Because of what appears to be psychic power, Cecil decides to take more interest in her and listen to Tia's ramblings.
Characters
- Cecil Glo Alphasta (セシル・グロー・アルファスタ, Seshiru Gurō Arufasuta)
- Voiced by: Yūsuke Kobayashi[2] (Japanese); Blake NcNamara, Donna Xia (child)[3] (English)
- First prince, who suffers from a hereditary mental disorder that leaves him somewhat a psychopath; it's not consistent with each generation, but randomly manifests via atavism. His father told him the only way to feel love is to find the right person, whom can interest him and bring joy; ironically enough, it turns out to be Tia, instead of the heroine, due her bizarre behavior. He was the popular love interest of the otome game, which is why Tia keeps trying to make herself look less appealing to him and get their engagement annulled; though Cecil finds her new ideas interesting and chooses to stick with her.
- Bertia Ibil Noches (バーティア・イビル・ノーチェス, Bātia Ibiru Nochesu) / Tia
- Voiced by: Miyu Tomita[2] (Japanese); Kelly Greenshield[3] (English)
- A girl reborn as the villainess of her favorite otome game. A clumsy girl who claims to be a villainess, which interests Cecil. Tia tried to get her father to be the villain he was by giving him a manual on upcoming events; however, he instead took the good path and reported intel to Cecil. Despite her obliviousness, Tia does have a natural talent for organizing information in books; which comes in handy for Cecil, who corrects future issues behind her back with said information.
- Unknown to Tia, she has contracted a spirit of darkness, who she named "Kuro"; due to the fact magic wasn't in the original game. Doubling her ignorance is that her spirit only appears in the form of a child due to Tia never staying awake long at night; dark spirits are weak during the day, thus Tia spending most of her time being active during the day indirectly prevents her spirit from gathering power in the night.
- Heronia Inderon (ヒロー二ア・インデロン, Hirōnia Inderon)
- Voiced by: Yume Miyamoto[4] (Japanese); Francine Gonzalez[3] (English)
- Shawn Turquoin Alphasta (ショーン・ターコイン・アルファスタ, Shōn Tākoin Arufasuta)
- Voiced by: Ayumu Murase[5]
- Joanna Curtswarren (ジョアンナ・ケルツウォーレン, Joanna Kerutsuwōren)
- Voiced by: Ayaka Ōhashi[5]
- Nelt Krum (ネルト・クラム, Neruto Kuramu)
- Voiced by: Shun Horie[5]
- Silica Lunea (シーリカ・ルネア, Shīrika Runea)
- Voiced by: Iori Saeki[5]
- Charles Raonel (チャールズ・ラオネル, Chāruzu Raoneru)
- Voiced by: Yusuke Shirai[6]
- Anne Kogares (アンネ・コガーレス, Anne Kogāresu)
- Voiced by: Aya Uchida[6]
- Vald Norgins (バルド・ノーキンス, Barudo Nōkinsu)
- Voiced by: Hidenori Takahashi[6]
- Cynthia Linnerith (シンシア・ソーネリス, Shinshia Sōnerisu)
- Voiced by: M.A.O[6]
- Zeno (ゼノ)
- Voiced by: Atsushi Tamaru[6] (Japanese); Tom Aglio[3] (English)
- Courtgain Deres Mardan (クールガン・デレス・マーダン, Kūrugan de Resu Mādan)
- Voiced by: Seiichiro Yamashita[6]
- Kuro (クロ)
- Voiced by: Akari Kitō[6] (Japanese); Sara Ragsdale[3] (English)
Media
Light novel
Written by Shiki, An Observation Log of My Fiancée Who Calls Herself a Villainess was originally published on the Shōsetsuka ni Narō website until Shiki removed it on March 27, 2017.[7] AlphaPolis later published two volumes with illustrations by Wan Hachipisu under their Regina Books light novel imprint from May 4 to September 5, 2017. The series is licensed digital-only in English by Hanashi Media under the title Observation Records of My Fiancée: The Misadventures of a Self-Proclaimed Villainess.[8]
A sequel series, titled An Observation Log of My Wife Who Calls Herself a Villainess (自称悪役令嬢な妻の観察記録。, Jishō Akuyaku Reijō na Tsuma no Kansatsu Kiroku), began publication under the same imprint on April 5, 2022. Five volumes have been released as of June 5, 2025.[9] The sequel is also licensed by digital-only by Hanashi Media under the title Observation Records of My Wife: The Misadventures of a Self-Proclaimed Villainess.
Observation Records of My Fiancée: The Misadventures of a Self-Proclaimed Villainess
| No. | Original release date | Original ISBN | North American release date | North American ISBN |
|---|---|---|---|---|
| 1 | May 4, 2017[10] | 978-4-434-23231-2 | July 30, 2024[11] | 978-1-961-78815-2 |
| 2 | September 5, 2017[12] | 978-4-434-23697-6 | February 28, 2025[13] | 978-1-961-78826-8 |
Observation Records of My Wife: The Misadventures of a Self-Proclaimed Villainess
| No. | Original release date | Original ISBN | English release date | English ISBN |
|---|---|---|---|---|
| 1 | April 5, 2022[14] | 978-4-434-30111-7 | May 30, 2025[15] | 978-1-961-78828-2 |
| 2 | October 5, 2022[16] | 978-4-434-30897-0 | January 29, 2026[17] | 978-1-961-78843-5 |
| 3 | May 5, 2023[18] | 978-4-434-31941-9 | — | — |
| 4 | May 5, 2024[19] | 978-4-434-33502-0 | — | — |
| 5 | June 5, 2025[9] | 978-4-434-35815-9 | — | — |
Manga
A manga adaptation illustrated by Natsume Hasumi was serialized on AlphaPolis' Regina manga website from May 7, 2018, to August 6, 2021.[20] The manga's chapters were compiled into six tankōbon volumes released from December 31, 2018, to October 5, 2021.[21][22] The manga is published in English on AlphaPolis' Alpha Manga manga service.[1]
A manga adaptation of the sequel series, also illustrated by Hasumi, began serialization on the same website on March 29, 2022.[23] The sequel manga's chapters have been compiled into three tankōbon volumes as of June 5, 2025.[24] The sequel manga is also published in English on AlphaPolis' Alpha Manga manga service.[25]
An Observation Log of My Fiancée Who Calls Herself a Villainess
| No. | Original release date | Original ISBN | North American release date | North American ISBN |
|---|---|---|---|---|
| 1 | December 31, 2018[21] | 978-4-434-25336-2 | June 30, 2023[26] | — |
| 2 | August 5, 2019[27] | 978-4-434-26101-5 | June 30, 2023[28] | — |
| 3 | February 5, 2020[29] | 978-4-434-26877-9 | June 30, 2023[30] | — |
| 4 | August 5, 2020[31] | 978-4-434-27636-1 | December 22, 2023[32] | — |
| 5 | March 5, 2021[33] | 978-4-434-26877-9 | December 22, 2023[34] | — |
| 6 | October 5, 2021[22] | 978-4-434-29415-0 | December 22, 2023[35] | — |
An Observation Log of My Wife Who Calls Herself a Villainess
| No. | Original release date | Original ISBN | North American release date | North American ISBN |
|---|---|---|---|---|
| 1 | November 5, 2022[36] | 978-4-434-31029-4 | May 23, 2025[37] | — |
| 2 | August 5, 2023[38] | 978-4-434-32329-4 | May 23, 2025[39] | — |
| 3 | June 5, 2025[24] | 978-4-434-35819-7 | — | — |
| 4 | April 10, 2026[40] | 978-4-434-37523-1 | — | — |
Anime
An anime television series adaptation was announced on May 12, 2025.[41] The series will be produced by Ashi Productions and directed by Junichi Yamamoto, with Akiko Inoue handling series composition and episode screenplays, Miki Matsumoto designing the characters, and Yuki Hayashi, Luke Standridge and Asa Taylor composing the music.[2] It premiered on April 6, 2026, on Tokyo MX and other networks.[4] The opening theme song is "La Fleur", performed by Airi Miyakawa, and the ending theme song is "Magic", performed by RLOEVO.[42] Crunchyroll is streaming the series.[43]
Episodes
| No. | Title [44][45] | Directed by [a] | Written by [a] | Storyboard by [a] | Original release date [46][b] | |
|---|---|---|---|---|---|---|
| 1 | "An Observation Log of Meeting a Self-Proclaimed Villainess" Transliteration: "Jishō Akuyaku Reijō to Deai no Kansatsu Kiroku." (Japanese: 自称悪役令嬢と出会いの観察記録。) | Unknown | Unknown | TBA | April 3, 2026 | |
|
Prince Cecil, who usually has no emotions, meets his arranged fiancée Bertia who claims to be a villainess, which he actually finds amusing. Bertia explains in her previous life she played an otome game identical to her current life, so she knows the future. Cecil will fall in love with the heroine, and Bertia will become a villainess, all leading to Cecil's happy ending. Cecil notices something about her pet fox Kuro but keeps it to himself. He is surprised Bertia predicts an epidemic will kill many including her mother because the cure, the Luona leaf, is rare. A year later the epidemic does not appear, confusing Bertia. Cecil admits he identified the disease from her description, grew the Luona leaf himself and when the first patient appeared she was cured immediately, preventing the epidemic. Bertia is amazed as this never happened in the game. Cecil gives her a vial of universal medicine, revealing during his research he found a secret room in the royal library containing secret books, one of which was a recipe for the medicine, and he wants her kept safe. Bertia insists on sticking to the story so that Cecil finds his happiness, starting with turning her father, Marquis Noches, into an evil man. | ||||||
| 2 | "An Observation Log of the Self-proclaimed Villainess's Debut Into Society" Transliteration: "Jishō Akuyaku Reijō to shakaikai debyū no kansatsu kiroku." (Japanese: 自称悪役令嬢と社交界デビューの観察記録。) | TBA | TBA | TBA | April 10, 2026 | |
|
Cecil notices Bertia is familiar with Viscount Consabtier. Bertia admits in the game it was Consabtier who corrupted her father, so she sought his advice. Cecil is furious as Consabtier is a known pedophile. Bertia is so shocked she names his conspirators; Count Conmorno and Baron Sagile. Cecil secretly convinces Noches to spy on the three men. Six months later, Cecil begins attending Halm academy and Bertia reveals her mother is pregnant. After baby Aneth is born, Bertia reveals to Cecil he did not exist in the game due to her mother's death. Now Aneth exists, Noches will not seek out distant relative Courtgain to adopt as heir. In turn, Courtgain will not attend Halm Academy to become one of Cecil's aide candidates or the heroine's husband candidates, along with Lord Vald, Lord Charles, Lord Nelt and Second Prince Shawn. She fears the game might kill Aneth to ensure Courtgain takes his place in the story. Cecil solves the issue by having Courtgain adopted by another noble family and sent to Halm. Bertia reveals there is one scenario where the heroine seduces all five husband candidates, but she never figured out how. Cecil reveals there are light spirits that can use hypnosis magic, such as his aide Zeno and her pet fox, darkness spirit Kuro. Bertia is shocked as she had no idea Kuro was a spirit she accidentally contracted to by naming her. Elsewhere, a lady named Heronia Inderon arrives in the city with her light spirit Pii. | ||||||
| 3 | "An Observation Log of a Self-proclaimed Villainess and Entering School" | TBA | TBA | TBA | April 17, 2026 | |
|
Bertia enrols at Halm where Cecil and Courtgain are already members of the student council with Charles, Vald, Nelt and Shawn. Joanna, Cecil's cousin, becomes one of Bertia's friends, along with Silica, Cynthia and Anne. Bertia insists they are her evil minions. Bertia determines Cecil and the potential-husbands must have met Heronia by now. Cecil admits they have, but claims he found Heronia irritating and reported her as suspicious to the teachers. Bertia is stunned the heroine's first meeting with the husbands is ruined. As Joanna is a schemer like himself, Cecil convinces her to help protect Bertia. Joanna reveals there are several students jealous of Bertia, and Heronia is one of them. With Joanna dealing with the human dangers, Cecil is confident Kuro can protect Bertia from Pii. Bertia tries to manufacture another meeting between Cecil and Heronia, but Cecil blatantly ignores Heronia to focus on Bertia. In this manner he successfully avoids Heronia several times. As Heronia is a mere Baron's daughter, trying to forcibly introduce herself to a prince is the height of bad manners, leading Cecil to actively dislike her. Also, Bertia's constant attempts to set him up with Heronia have begun to upset him. | ||||||
| 4 | "An Observation Log of a Self-proclaimed Villainess and Love's Cupid" | TBA | TBA | TBA | April 24, 2026 | |
|
Bertia decides to find the other husband candidates' girlfriends, so they don't fall in love with Heronia and get in Cecil's way. First, she tries to get Vald together with Cynthia by teaching her to ride a horse, but since Cynthia never got sick in the pandemic Cecil prevented, she learned to ride years ago. They end up becoming close anyway by racing. Next, Bertia reveals Charles is actually in love with Anne, who is engaged to his older brother. Anne turns out to have feelings for Charles too, so he decides to become worthy of her by competing to become Cecil's aide. Bertia notices Shawn becomes nervous around Joanna, and Nelt is already childhood friends with Silica. Bertia suggests they make cookies for Shawn and Nelt, but Joanna is a terrible cook. Shawn turns out to like that Joanna isn't perfect all the time, since previously he was intimidated by her. Nelt shouts at Silica for always fussing over him. Nelt is amazed when Bertia reveals Silica only does so because she loves him. Nelt soon misses Silica's constant presence, so he apologises and asks Silica to stay with him forever. Bertia is glad she was successful as Cupid. Heronia is furious nothing is going right for her, and unknown to Heronia a mysterious woman is watching her. | ||||||
| 5 | "An Observation Log of a Self-proclaimed Villainess and First Feelings" | TBA | TBA | TBA | April 24, 2026 | |
|
Heronia starts a rumour Bertia is bullying her. Cecil notices everyone has earrings from Bertia while he doesn't. Bertia later gives him his earring, explaining they are charmed to protect everyone from Heronia's hypnosis, so she wasn't sure about giving one to Cecil since he is supposed to be with Heronia. Cecil takes the earring and Zeno casts a spell on Cecil and Bertia so their earrings can't be removed. The King orders Cecil to study in another country for 4 months. Cecil deduces that country is becoming corrupt in its trading, so he was sent to take advantage of their greed. His spies inform him Bertia has been framed for bullying. Cecil doubts Heronia is the culprit as the methods are unusually direct. Returning home, Cecil is frustrated Bertia is happy to seem like the villainess while her friends continue to expose Heronia for framing Bertia. Cecil deduces Heronia only has supporters because they are hypnotised, and despite his promise to Bertia not to interfere, he ends up threatening Heronia after catching her destroying Bertia's belongings. Shawn accuses Cecil of feeling lonely due to Bertia refusing his help, and letting Bertia struggle alone as childish revenge. Cecil is shocked, as he never considered he might feel lonely before. Word reaches him Bertia has fallen down stairs. | ||||||
| 6 | "An Observation Log of a Self-proclaimed Villainess and the resolution of the Matter" | TBA | TBA | TBA | May 1, 2026 | |
Reception
In 2021, the manga adaptation, alongside The Savior's Book Café Story in Another World, won the Isekai Comic Prize at NTT Solmare's Digital Comic Awards 2021.[47]
See also
- 7th Time Loop, another light novel series with the same illustrator
- I Was Reincarnated as the Villainess in an Otome Game, but the Boys Love Me Anyway!, another light novel series with the same illustrator