ONA
Finished
SPRING 2026
An Observation Log of My Fiancée Who Calls Herself a Villainess
Nhật ký quan sát vị hôn thê của tôi, người tự gọi mình là nhân vật phản diện
Score
7.70
Popularity
#30,625
Episodes
12
Duration
24 min
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 story. But no matter how hard she tries to scheme, her “evil” plans only make her more endearing!
(Source: Crunchyroll)
Note: Jishou Akuyaku Reijou na Konyakusha no Kansatsu Kiroku. was streamed 3 days in advance of the TV broadcast on Prime Video, and Crunchyroll beginning April 3, 2026. Regular broadcasting began on April 6, 2026.
(Source: Crunchyroll)
Note: Jishou Akuyaku Reijou na Konyakusha no Kansatsu Kiroku. was streamed 3 days in advance of the TV broadcast on Prime Video, and Crunchyroll beginning April 3, 2026. Regular broadcasting began on April 6, 2026.
Episode List (12)
✓ 12/12 Aired
Characters & Voice Actors (Seiyuu)
Cecil Glo Alphasta
Main
Marina Inoue
Japanese
Bertia Ibil Noches
Main
Miyu Tomita
Japanese
Heronia Inderon
Supporting
Yume Miyamoto
Japanese
Joanna Curtswarren
Supporting
Ayaka Oohashi
Japanese
Shawn Alphasta
Supporting
Ayumu Murase
Japanese
Nelt Krum
Supporting
Shun Horie
Japanese
Silica Lunea
Supporting
Iori Saeki
Japanese
Zeno
Supporting
Atsushi Tamaru
Japanese
Vald Norgins
Supporting
Hidenori Takahashi
Japanese
Courtgain Mardan
Supporting
Seiichirou Yamashita
Japanese
Kuro
Supporting
Akari Kitou
Japanese
Charles Laonel
Supporting
Yuusuke Shirai
Japanese
Cynthia Linnerith
Supporting
Mao Ichimichi
Japanese
Anne Kogares
Supporting
Aya Uchida
Japanese
Pii
Supporting
Haruka Minami
Japanese
Douglas Noches
Supporting
Kouji Ishii
Japanese
Themes & Detailed Tags (11)
Streaming Platforms
Anime Information
Genres
Producers
KLOCKWORX, AlphaPolis
Aired Date
03/04/2026
to 19/06/2026
Source
LIGHT_NOVEL
Production Staff
24
Akinori Mishima
Editing
Naomi Nakano
Color Design
Junichi Higashi
Art Director
Yukio Nagasaki
Sound Director
Junichi Yamamoto
Director
Yuuki Hayashi
Music
Yuuta Fujii
Art Design
Miki Matsumoto
Character Design
Susie Nixon
ADR Producer
Kio Edamatsu
Prop Design
Matt Grounds
ADR Mixer
Eiki Etou
Director of Photography
Akiko Inoue
Script
Clayton Browning
ADR Script
Yuika Nagai
Color Design Assistance
Shawn Gann
ADR Director
Jie Ren
CG Director
Airi Miyakawa
Theme Song Performance
Wan Hatipisu
Original Character Design
Shiki
Original Story
Uni Matsui
Sub Character Design
Abe
Sub Character Design
Luke Standridge
Music
Asa Taylor
Music