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An Observation Log of My Fiancée Who Calls Herself a Villainess

An Observation Log of My Fiancée Who Calls Herself a Villainess
★ 7.9/10•2026•24m•14•Animation•Comedy•Sci-Fi & Fantasy
Similars

Bertia is reincarnated into her favorite otome game—not as the heroine, but as the villainess engaged to the perfect Crown Prince Cecil! Fully aware that her role is to sabotage his future romance, she’s determined to bloom as a wicked flower and wither away according to the story. But no matter how hard she tries to scheme, her “evil” plans only make her more endearing!

StatusEnded
Runtime24m
LanguageJA
First Air DateApr 6, 2026

Episodes

Episode 1 - An Observation Log of Meeting a Self-Proclaimed Villainess.E124m

An Observation Log of Meeting a Self-Proclaimed Villainess.

When Crown Prince Cecil is ten years old, he takes Bertia as his fiancée. She claims to have memories of her past life, and says that this is the world of an otome game she once played. She also says that she is a villainess. Cecil is generally bored, but her extraordinary statements spark curiosity in his heart.

Apr 6, 2026

Episode 2 - An Observation Log of the Self-Proclaimed Villainess's Debut into SocietyE224m

An Observation Log of the Self-Proclaimed Villainess's Debut into Society

Bertia struggles to correct the scenario she has unintentionally altered. At the same time, Cecil enters Halm Academy, a boarding school. During this time in which the two of them spend more and more time apart, Bertia's mother becomes pregnant and it leaves Bertia worried about one thing.

Apr 13, 2026

Episode 3 - An Observation Log of a Self-Proclaimed Villainess and Entering School.E324m

An Observation Log of a Self-Proclaimed Villainess and Entering School.

Time passes and Bertia enrolls at Halm Academy, the same school as Cecil. At the same time, Heronia, the heroine of the otome game, also enrolls there. Wishing for a happy ending for Cecil, Bertia fights to bring the two of them together.

Apr 20, 2026

Episode 4 - An Observation Log of a Self-Proclaimed Villainess and Love's Cupid.E424m

An Observation Log of a Self-Proclaimed Villainess and Love's Cupid.

In order for Cecil to find happiness with Heronia, avoiding the reverse harem route is essential. For that reason, Bertia has decided to become love's cupid, pairing Cecil's personal aide candidates with other noble ladies.

Apr 27, 2026

Episode 5 - An Observation Log of a Self-Proclaimed Villainess and First Feelings.E524m

An Observation Log of a Self-Proclaimed Villainess and First Feelings.

Heronia grows impatient with the fact that the situation isn't unfolding according to the proper scenario and her attitude toward Bertia worsens. Since the moment Cecil left to study abroad, the harassment that Bertia faces, presumably spurred by Heronia, escalates by the day.

May 4, 2026

Episode 6 - An Observation Log of a Self-Proclaimed Villainess and the Resolution of the Matter.E624m

An Observation Log of a Self-Proclaimed Villainess and the Resolution of the Matter.

When Cecil learns that Bertia has been pushed down the stairs, he's assailed by an emotion he's never experienced before. Together with the members of the student council, he sets out to take retribution. They gather everyone in the courtyard in order to catch the true culprit.

May 11, 2026

Episode 7 - An Observation Log of a Self-Proclaimed Villainess and Hatred.E724m

An Observation Log of a Self-Proclaimed Villainess and Hatred.

Upon advancing to the high school division, Bertia begins avoiding Cecil. After turning the situation over in his mind, Cecil visits his father in order to investigate the nature of the Maiden of Destiny. The fated day, the graduation ceremony, quickly approaches.

May 18, 2026

Episode 8 - An Observation Log of a Self-Proclaimed Villainess and Being Struck Speechless.E824m

An Observation Log of a Self-Proclaimed Villainess and Being Struck Speechless.

It's the day of the graduation ceremony. Bertia is resolved to have the tables turned on her and be struck speechless just as the game scenario dictates, but Cecil has prepared something entirely different. Then Heronia speaks up, accusing the villainess Bertia of heinous crimes.

May 25, 2026

Episode 9 - An Observation Log of a Self-Proclaimed Villainess and a Doll.E924m

An Observation Log of a Self-Proclaimed Villainess and a Doll.

Cecil has been knocked unconscious by the light spirit, Pii-chan, who makes him live in a what-if world in a realm of pure consciousness. The Cecil of that world, where everything unfolds according to the game's original scenario, is as cold and emotionless as a doll, and as Cecil experiences that for himself, his own consciousness begins drifting closer to that of a doll, too.

Jun 1, 2026

Episode 10 - An Observation Log of a Self-Proclaimed Villainess and Cecil Glo Alphasta.E1024m

An Observation Log of a Self-Proclaimed Villainess and Cecil Glo Alphasta.

Cecil wakes after witnessing Pii-chan vanish into nothingness, but Bertia's anxiety hasn't abated even though the judgement event is over. Cecil convinces Bertia to tell him about the different routes the future takes in the game scenario.

Jun 8, 2026

Episode 11 - An Observation Log of a Self-Proclaimed Villainess and the Royal Family.E1124m

An Observation Log of a Self-Proclaimed Villainess and the Royal Family.

At last, Cecil and Bertia commit themselves to each other in the truest sense, but the problem of how to deal with Heronia still remains. In order to keep his promise to Pii-chan, Cecil confronts Heronia.

Jun 15, 2026

Episode 12 - An Observation Log of a Self-Proclaimed Villainess as a Wife.E1224m

An Observation Log of a Self-Proclaimed Villainess as a Wife.

It's been two years, and the day of Cecil and Bertia's wedding ceremony has arrived. Believing that Bertia deserves to be the happiest bride in the world, Cecil works hard to fulfill her every wish. Watched over by family and friends, their ceremony proceeds in a way that is uniquely their own.

Jun 22, 2026

Actors

Yusuke Kobayashi

Yusuke Kobayashi

Cecil Glo Alphasta (voice)

Miyu Tomita

Miyu Tomita

Bertia Ibil Noches (voice)

Yume Miyamoto

Yume Miyamoto

Heronia Inderon (voice)

Ayumu Murase

Ayumu Murase

Shawn Turquoin Alphasta (voice)

Ayaka Ohashi

Ayaka Ohashi

Joanna Curtswarren (voice)

Shun Horie

Shun Horie

Nelt Krum (voice)

Iori Saeki

Iori Saeki

Silica Lunea (voice)

Yusuke Shirai

Yusuke Shirai

Charles Raonel (voice)

Aya Uchida

Aya Uchida

Anne Kogares (voice)

Hidenori Takahashi

Hidenori Takahashi

Vald Norgins (voice)

Mao Ichimichi

Mao Ichimichi

Cynthia Linnerith (voice)

Atsushi Tamaru

Atsushi Tamaru

Zeno (voice)

Seiichiro Yamashita

Seiichiro Yamashita

Courtgain Deres Mardan (voice)

Akari Kito

Akari Kito

Kuro (voice)

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