Yusuke Kobayashi
Cecil Glo Alphasta (voice)
Series
Watch An Observation Log of My Fiancée Who Calls Herself a Villainess (2026) Online
Synopsis
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!
Episodes
Season 1
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1. An Observation Log of Meeting a Self-Proclaimed Villainess.Now viewing2026-04-0624m6.0When 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.
2. An Observation Log of the Self-Proclaimed Villainess's Debut into Society2026-04-1324m7.0Bertia 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.
3. An Observation Log of a Self-Proclaimed Villainess and Entering School.2026-04-2024m7.0Time 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.
4. An Observation Log of a Self-Proclaimed Villainess and Love's Cupid.2026-04-2724m7.0In 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.
5. An Observation Log of a Self-Proclaimed Villainess and First Feelings.2026-05-0424m7.0Heronia 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.
6. An Observation Log of a Self-Proclaimed Villainess and the Resolution of the Matter.2026-05-1124m7.5When 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.
7. An Observation Log of a Self-Proclaimed Villainess and Hatred.2026-05-1824m7.5Upon 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.
8. An Observation Log of a Self-Proclaimed Villainess and Being Struck Speechless.2026-05-2524m7.5It'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.
9. An Observation Log of a Self-Proclaimed Villainess and a Doll.2026-06-0124m7.5Cecil 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.
10. An Observation Log of a Self-Proclaimed Villainess and Cecil Glo Alphasta.2026-06-0824m8.0Cecil 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.
11. An Observation Log of a Self-Proclaimed Villainess and the Royal Family.2026-06-1524m7.5At 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.
12. An Observation Log of a Self-Proclaimed Villainess as a Wife.2026-06-2224m8.5It'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.
Cast
Top Billed Cast
Miyu Tomita
Bertia Ibil Noches (voice)
Yume Miyamoto
Heronia Inderon (voice)
Ayumu Murase
Shawn Turquoin Alphasta (voice)
Ayaka Ohashi
Joanna Curtswarren (voice)
Shun Horie
Nelt Krum (voice)
Iori Saeki
Silica Lunea (voice)
Yusuke Shirai
Charles Raonel (voice)
Aya Uchida
Anne Kogares (voice)
Hidenori Takahashi
Vald Norgins (voice)
Mao Ichimichi
Cynthia Linnerith (voice)
Atsushi Tamaru
Zeno (voice)
Seiichiro Yamashita
Courtgain Deres Mardan (voice)
Akari Kito
Kuro (voice)
Availability
Where To Watch Legally
Crunchyroll
Crunchyroll Amazon Channel
Amazon Video
Apple TV StoreStreaming availability data provided by JustWatch.
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FAQ
Frequently Asked Questions
Is An Observation Log of My Fiancée Who Calls Herself a Villainess available to watch online?
Yes - see the "Where to watch legally" section on this page for streaming, rental and purchase options.
How many seasons does An Observation Log of My Fiancée Who Calls Herself a Villainess have?
An Observation Log of My Fiancée Who Calls Herself a Villainess has 1 season and 12 episodes.
When did An Observation Log of My Fiancée Who Calls Herself a Villainess first air?
An Observation Log of My Fiancée Who Calls Herself a Villainess first aired in 2026.
Is An Observation Log of My Fiancée Who Calls Herself a Villainess still running?
An Observation Log of My Fiancée Who Calls Herself a Villainess's status on TMDB is: Ended.
What genre is An Observation Log of My Fiancée Who Calls Herself a Villainess?
An Observation Log of My Fiancée Who Calls Herself a Villainess is classified as Animation, Comedy, Sci-Fi & Fantasy.