An Observation Log of My Fiancée Who Calls Herself a Villainess 2026
What is An Observation Log of My Fiancée Who Calls Herself a Villainess?
An Observation Log of My Fiancée Who Calls Herself a Villainess is a 2026 Japanese animated television series that blends comedy with fantasy and sci‑fi elements. Adapted from the light novel series written by Shiki and illustrated by Wan Hachipisu, the show follows the protagonist Bertia after she is reborn inside her favorite otome game.
- Type
- TV series
- Year
- 2026
- Status
- Ended
- Episodes
- 12
- First aired
- Apr 6, 2026
- Last aired
- Jun 22, 2026
- Original language
- JA
- Origin
- JP
- Networks
- Tokyo MX
- Genres
- Animation, Comedy, Sci-Fi & Fantasy
- Updated
Where to watch
Stream
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How long to binge?
Estimate the schedule using 12 episodes and an average 45-minute runtime.
Trailer
Overview
An Observation Log of My Fiancée Who Calls Herself a Villainess is a 2026 Japanese animated television series that blends comedy with fantasy and sci‑fi elements. Adapted from the light novel series written by Shiki and illustrated by Wan Hachipisu, the show follows the protagonist Bertia after she is reborn inside her favorite otome game. Rather than assuming the heroine’s role, she awakens as the villainess who is betrothed to Crown Prince Cecil, fully aware that the narrative
Should you watch it?
“A villainess's evil schemes backfire by making her more lovable instead.”
- Fresh twist on villainess tropes
- Charming character dynamics
- Lighthearted romantic comedy tone
- Predictable romantic plot beats
- Limited character development beyond main couple
You enjoy cute romantic comedies with game-inspired fantasy settings.
Suitable for teens and up who enjoy lighthearted romance and comedy.
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Cast
Episode guide
Season 1 · 12 episodes
Open the complete Season 1 guide →- E1 An Observation Log of Meeting a Self-Proclaimed Villainess. Apr 6, 2026
- E2 An Observation Log of the Self-Proclaimed Villainess's Debut into Society Apr 13, 2026
- E3 An Observation Log of a Self-Proclaimed Villainess and Entering School. Apr 20, 2026
- E4 An Observation Log of a Self-Proclaimed Villainess and Love's Cupid. Apr 27, 2026
- E5 An Observation Log of a Self-Proclaimed Villainess and First Feelings. May 4, 2026
- E6 An Observation Log of a Self-Proclaimed Villainess and the Resolution of the Matter. May 11, 2026
- E7 An Observation Log of a Self-Proclaimed Villainess and Hatred. May 18, 2026
- E8 An Observation Log of a Self-Proclaimed Villainess and Being Struck Speechless. May 25, 2026
- E9 An Observation Log of a Self-Proclaimed Villainess and a Doll. Jun 1, 2026
- E10 An Observation Log of a Self-Proclaimed Villainess and Cecil Glo Alphasta. Jun 8, 2026
- E11 An Observation Log of a Self-Proclaimed Villainess and the Royal Family. Jun 15, 2026
- E12 An Observation Log of a Self-Proclaimed Villainess as a Wife. Jun 22, 2026
Frequently asked questions
Is this based on a game or manga?
It's adapted from an otome game setting but focuses on the villainess character.
Does the main character stay evil?
She tries to be evil but her plans consistently fail in endearing ways.
Is there a love triangle?
The story involves romantic elements with multiple potential interests.
How many episodes are there?
The series runs for a standard seasonal anime length.
Is it dubbed or subbed?
It features both Japanese voice acting and English subtitles.