An Observation Log of My Fiancée Who Calls Herself a Villainess

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

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.

An Observation Log of My Fiancée Who Calls Herself a Villainess is an animation, comedy, and science fiction series that ran on TOKYO MX. It ran for one season of 12 episodes between April 2026 and June 2026.

Its themes are prince, villainess, romance, and slice of life. Yusuke Kobayashi leads the cast as Cecil Glo Alphasta (voice), Miyu Tomita as Bertia Ibil Noches (voice), Yume Miyamoto as Heronia Inderon (voice), and Ayumu Murase as Shawn Turquoin Alphasta (voice).

In the United States it streams on Crunchyroll and Crunchyroll Amazon Channel.

Endo and Kobayashi Live! The Latest on Tsundere Villainess Lieselotte, The Saint's Magic Power Is Omnipotent, and I'll Become a Villainess Who Goes Down in History make useful companions to An Observation Log of My Fiancée Who Calls Herself a Villainess, all filed under based on light novel.