An Observation Log of My Fiancée Who Calls Herself a Villainess banner
ONA● AiringSpring 2026

An Observation Log of My Fiancée Who Calls Herself a Villainess

自称悪役令嬢な婚約者の観察記録。 · Jishou Akuyaku Reijou na Konyakusha no Kansatsu Kiroku.

7.1/10
15.5K users
ComedyFantasyRomanceSlice of Life
AniList
Currently Airing

Episodes

12 episodes

Duration

24 min/ep

Released

Apr 3 2026

Format

ONA

Score

7.1/10

Popularity

#15.5K

Studio

Ashi Productions

Country

JP

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 stor…

Characters & Cast

Cecil Glo Alphasta

Cecil Glo Alphasta

Main

Yuusuke Kobayashi

Yuusuke Kobayashi

Bertia Ibil Noches

Bertia Ibil Noches

Main

Miyu Tomita

Miyu Tomita

Heronia Inderon

Heronia Inderon

Supporting

Yume Miyamoto

Yume Miyamoto

Joanna Curtswarren

Joanna Curtswarren

Supporting

Ayaka Oohashi

Ayaka Oohashi

Silica Lunea

Silica Lunea

Supporting

Iori Saeki

Iori Saeki

Shawn Alphasta

Shawn Alphasta

Supporting

Ayumu Murase

Ayumu Murase

Nelt Krum

Nelt Krum

Supporting

Shun Horie

Shun Horie

Official Trailer

Where to Watch

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Studio

Animation Studio

Ashi Productions

Producer

AlphaPolis

Producer

KLOCKWORX

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