An Observation Log of My Fiancée Who Calls Herself a Villainess(2026)
An Observation Log of My Fiancée Who Calls Herself a Villainess 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!
An Observation Log of My Fiancée Who Calls Herself a Villainess (2026) is a animation, comedy and sci-fi & fantasy series that premiered on April 6, 2026, spanning 1 season and 12 episodes. It stars Yusuke Kobayashi, Miyu Tomita, Yume Miyamoto and Ayumu Murase. Viewers rate it 7.8 out of 10 across 25 ratings.
- First aired:
- 2026-04-06
- Last aired:
- 2026-06-22
An Observation Log of My Fiancée Who Calls Herself a Villainess (2026) Trailer
Watch the official trailer for An Observation Log of My Fiancée Who Calls Herself a Villainess before you start streaming.
An Observation Log of My Fiancée Who Calls Herself a Villainess Cast & Crew
Main cast
Yusuke Kobayashi
as Cecil Glo Alphasta (voice)
Miyu Tomita
as Bertia Ibil Noches (voice)
Yume Miyamoto
as Heronia Inderon (voice)
Ayumu Murase
as Shawn Turquoin Alphasta (voice)
Ayaka Ohashi
as Joanna Curtswarren (voice)
Shun Horie
as Nelt Krum (voice)
Iori Saeki
as Silica Lunea (voice)
Yusuke Shirai
as Charles Raonel (voice)
Aya Uchida
as Anne Kogares (voice)
Hidenori Takahashi
as Vald Norgins (voice)
Mao Ichimichi
as Cynthia Linnerith (voice)
Atsushi Tamaru
as Zeno (voice)
Explore more Animation shows
An Observation Log of My Fiancée Who Calls Herself a Villainess Reviews & Ratings
Average viewer score of 7.8/10 from 25 ratings.
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An Observation Log of My Fiancée Who Calls Herself a Villainess – Frequently Asked Questions
Where can I stream An Observation Log of My Fiancée Who Calls Herself a Villainess?
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An Observation Log of My Fiancée Who Calls Herself a Villainess (2026) is available to stream on Crunchyroll and Crunchyroll Amazon Channel, with episodes also available to buy from Amazon Video and Apple TV Store. Availability comes from JustWatch data and varies by country.
How many seasons of An Observation Log of My Fiancée Who Calls Herself a Villainess are there?
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An Observation Log of My Fiancée Who Calls Herself a Villainess has 1 season and 12 episodes in total, starting from its premiere on April 6, 2026.
Is An Observation Log of My Fiancée Who Calls Herself a Villainess still running?
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No. An Observation Log of My Fiancée Who Calls Herself a Villainess is marked as ended, with the final episode airing on June 22, 2026.
Who is in the cast of An Observation Log of My Fiancée Who Calls Herself a Villainess?
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An Observation Log of My Fiancée Who Calls Herself a Villainess (2026) stars Yusuke Kobayashi, Miyu Tomita, Yume Miyamoto, Ayumu Murase and Ayaka Ohashi. The full cast list with character names is available in the cast section of this page.
Is An Observation Log of My Fiancée Who Calls Herself a Villainess any good?
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An Observation Log of My Fiancée Who Calls Herself a Villainess (2026) is rated 7.8 out of 10 from 25 viewer votes, and suits viewers who like animation, comedy and sci-fi & fantasy series. Reviews from viewers are collected further down this page.
Where can I watch the An Observation Log of My Fiancée Who Calls Herself a Villainess trailer?
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The official An Observation Log of My Fiancée Who Calls Herself a Villainess trailer is embedded in the trailer section of this page and plays instantly in your browser.