An Observation Log of My Fiancée Who Calls Herself a Villainess

Where is An Observation Log of My Fiancée Who Calls Herself a Villainess streaming around the world?

About 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-language animation, comedy and sci-fi & fantasy series. The cast is led by Yusuke Kobayashi, Miyu Tomita, Yume Miyamoto. It spans 1 season and 12 episodes and has concluded. In United States, it is currently streaming on Crunchyroll, Crunchyroll Amazon Channel, YouTube TV.

An Observation Log of My Fiancée Who Calls Herself a Villainess was produced by Ashi Productions, AlphaPolis, and THE KLOCKWORX and made in Japan. It was first aired on April 6, 2026.

First aired

April 6, 2026

Last aired

June 22, 2026

Original language

Japanese

Status

Ended

Seasons

1 (12 episodes)

Network

Tokyo MX

Country

Japan

Production

Ashi Productions, AlphaPolis, THE KLOCKWORX

An Observation Log of My Fiancée Who Calls Herself a Villainess cast & crew

The cast features 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), and Shun Horie as Nelt Krum (voice).

Behind the camera, it was produced by Teppei Ota and Takahiro Kurisu.

Is An Observation Log of My Fiancée Who Calls Herself a Villainess worth watching?

With 1 season and 12 episodes, it's a quick, bingeable run.

If you enjoy animation, comedy, and sci-fi & fantasy, An Observation Log of My Fiancée Who Calls Herself a Villainess is worth a place on your watchlist.

How and where to watch An Observation Log of My Fiancée Who Calls Herself a Villainess

In United States, you can stream An Observation Log of My Fiancée Who Calls Herself a Villainess on Crunchyroll, Crunchyroll Amazon Channel, and YouTube TV, or rent and buy it on Amazon Video and Apple TV Store. Click any service above to open it directly.

Streaming rights change country by country and month by month, so the options above reflect United States today — switch your country at the top of the where-to-watch section to see availability elsewhere.

Cast of An Observation Log of My Fiancée Who Calls Herself a Villainess

Yusuke Kobayashi

Cecil Glo Alphasta (voice)

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)

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