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Observation Records of My Fiancée TV Anime Reveals Main Cast, More Staff
posted on by Crystalyn Hodgkins
The official website for the television anime of author Shiki and illustrator Wan Hachipisu's Observation Records of My Fiancée: The Misadventures of a Self-Proclaimed Villainess (Jishō Akuyaku Reijō na Konyakusha no Kansatsu Kiroku.) light novel series revealed the two main cast members and more staff members on Friday.
The staff also revealed three new screenshots from the anime.
📢テレビアニメ『自称悪役令嬢な婚約者の観察記録。』最新情報✨
— 自称悪役令嬢な婚約者の観察記録 (@jisho_akuyakuPR) October 3, 2025
新規場面カット&キャスト・スタッフ情報を解禁!
👑セシル役:#小林裕介
🎀バーティア役:#富田美憂
2026年の公開をお楽しみに!https://t.co/XPvxTw1jMj#自称悪役令嬢 #2026アニメ pic.twitter.com/oJLPrlpJEm
The anime will star Yūsuke Kobayashi as Cecil and Miyu Tomita as Bertia.
Yūki Hayashi, Luke Standridge, and Asa Taylor are composing the music, with music production cooperation by Futokoro Gatana.
Other newly announced staff members include:
- Sub-Character Design: Abe, Uni Matsui
- Color Design: Naomi Nakano (Stella)
- Assistant Color Design: Yuika Nagai (Stella)
- Art Director: Junichi Higashi
- Background Art: Yūta Fujii
- Director of Photography: Hideki Eto (EXPLOSION)
- Prop Design: Kio Edamatsu
- CG Director: Jie Ren (Boundary)
- Editing: Akinori Mishima (Mishima Editing Room)
- Sound Director: Yukio Nagasaki

Junichi Yamamoto (Anyway, I'm Falling in Love with You; Maebashi Witches; Why Raeliana Ended Up at the Duke's Mansion) is directing the anime at Ashi Productions. Miki Matsumoto (Summer Time Rendering, Angels of Death) is adapting Wan Hachipisu's character designs for animation, and Akiko Inoue (The Ones Within, You and Idol Precure♪, GeGeGe no Kitarō (TV 2018)) is both writing and overseeing the series scripts.
Hanashi Media has released the light novel series in English digitally, and it describes the story:
Exceptionally gifted to his own detriment, Prince Cecil had always found life effortlessly mundane. One ordinary day, his life took an unexpected turn when he became engaged to Miss Bertia, the Chancellor's daughter. This engagement, however, was anything but typical.
"Prince Cecil! I must confess - I am the villain of this story!" Bertia's declaration was startling. She claimed to have memories of her former life, where she had been the antagonist in a "Otome game". Her lofty ambition was to excel as a villainess and thus have her engagement annulled. However, despite her plans for various misdeeds, her attempts have always been unsuccessful.
Is her fiancé, who aspires to master villainous finesse, simply misguided in his endeavours?
Shiki originally serialized the story on the Shōsetsuka ni Narō website, but later took down the story. AlphaPolis released the original novel in two volumes in 2017 with illustrations by Wan Hachipisu. The series has an ongoing sequel titled Jishō Akuyaku Reijō na Tsuma no Kansatsu Kiroku.. The fifth volume of the sequel shipped on May 23. Hanashi Media released the first volume of the sequel digitally in English on June 30 under the title Observation Records of My Wife.
Natsume Hasumi drew a manga adaptation of the original novel series that had six volumes and one extra volume, which AlphaPolis has released in English on the Alpha Manga service under the title An Observation Log of My Fiancée Who Calls Herself a Villainess.
Hasumi is also drawing a manga adaptation of the Jishō Akuyaku Reijō na Tsuma no Kansatsu Kiroku. sequel. The third volume of the sequel shipped in Japan on May 23. Alpha Manga is also releasing the manga in English under the title An Observation Log of My Wife Who Calls Herself a Villainess.
Sources: Observation Records of My Fiancée anime's website, Comic Natalie