Crown Prince Cecil Glow Alfostar is a natural genius who finds life unbearably dull-knowledge and skill come too easily, leaving him uninterested in everything. That changes when he meets Bertia Evil Nochesse, his fiancée and self-proclaimed villainess. Bertia insists their world is an "otome game" and that she’s been reborn as the antagonist, destined to interfere with Cecil and the heroine’s romance. Eager to embrace her role, she throws herself into scheming... but her so-called "evil deeds" always end up backfiring, coming across as genuine kindness. Unaware of her own goodness, Bertia keeps Cecil endlessly entertained, finally freeing him from his boredom.

An Observation Log of My Fiancée Who Calls Herself a Villainess - S01
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Overview:
Crown Prince Cecil Glow Alfostar is a natural genius who finds life unbearably dull-knowledge and skill come too easily, leaving him uninterested in everything. That changes when he meets Bertia Evil Nochesse, his fiancée and self-proclaimed villainess. Bertia insists their world is an "otome game" and that she’s been reborn as the antagonist, destined to interfere with Cecil and the heroine’s romance. Eager to embrace her role, she throws herself into scheming... but her so-called "evil deeds" always end up backfiring, coming across as genuine kindness. Unaware of her own goodness, Bertia keeps Cecil endlessly entertained, finally freeing him from his boredom.
Aired:Apr 06, 2026
Duration:24m
Episodes:12
Networks:TOKYO MX
Country: Japan
Seasons (1)
Episodes (12)
1. An Observation Log of Meeting a Self-Proclaimed Villainess.2. An Observation Log of the Self-Proclaimed Villainess's Debut into Society3. An Observation Log of a Self-Proclaimed Villainess and Entering School.4. An Observation Log of a Self-Proclaimed Villainess and Love's Cupid.5. An Observation Log of a Self-Proclaimed Villainess and First Feelings.6. An Observation Log of a Self-Proclaimed Villainess and the Resolution of the Matter.7. An Observation Log of a Self-Proclaimed Villainess and Hatred.8. An Observation Log of a Self-Proclaimed Villainess and Being Struck Speechless.9. An Observation Log of a Self-Proclaimed Villainess and a Doll.10. An Observation Log of a Self-Proclaimed Villainess and Cecil Glo Alphasta.11. An Observation Log of a Self-Proclaimed Villainess and the Royal Family.12. An Observation Log of a Self-Proclaimed Villainess as a Wife.
Characters & Voice Actors

CharacterCecil Glo Alphasta (voice)
Voice ActorYusuke Kobayashi

CharacterBertia Ibil Noches (voice)
Voice ActorMiyu Tomita

CharacterHeronia Inderon (voice)
Voice ActorYume Miyamoto

CharacterShawn Turquoin Alphasta (voice)
Voice ActorAyumu Murase

CharacterJoanna Curtswarren (voice)
Voice ActorAyaka Ohashi

CharacterNelt Krum (voice)
Voice ActorShun Horie

CharacterSilica Lunea (voice)
Voice ActorIori Saeki

CharacterCharles Raonel (voice)
Voice ActorYusuke Shirai














