Latest Cast Update for Observation Record of a Self-Proclaimed Villainess Fiance Anime
The upcoming TV anime Observation record of a self-proclaimed villainess fiance has finally dropped some fresh news for the fans. They have just announced new cast members who will be voicing some very important characters in the series. This is quite an exciting time because we are getting closer to the actual release date, and seeing the character lineup grow makes it all the more real. If you are wondering about the story or why this is a big deal, you should definitely check out why you need to read and watch an observation log of my fiancée who calls herself a villainess to get a proper idea of what’s coming up.
According to the latest update, Atsushi Tamaru is going to play the role of Zeno. Along with him, Seiichiro Yamashita will be taking on the role of Cool Gun Deles Mardan, and Akari Kito is set to voice Kuro. These are some really solid voice actors, and it will be quite interesting to see how they bring these characters to life on the screen.

A Deep Dive into the New Characters
The story gives us some background on these new faces. Zeno is actually a servant and a spirit who serves Cecil. Then we have Cool Gun, a young man whose life changed quite a lot because of Bartia. He was eventually adopted by a nobleman and now serves as Cecil's very loyal subordinate. It’s quite a dramatic shift for him, no? Then there is Kuro, the black fox that Bartia always has with her. Kuro is actually a dark spirit and sometimes even takes the form of a young maid. It seems like the 6th character PV specifically focuses on these three—Zeno, Cool Gun, and Kuro—and it has already been released for everyone to watch.
Talking about the bond between Zeno and Cecil, Atsushi Tamaru mentioned that even though Crown Prince Cecil is usually seen as this cool and perfect guy, he shows Zeno a side of himself that other humans never get to see. He really wants fans to pay attention to that specific part while watching the work. It definitely adds more depth to their relationship, right?
TV anime “Observation record of my self-proclaimed villainous fiancée.” 6th character PV (Xeno, Kuro, Cool Gun)
Plot Premise and Broadcast Schedule
The anime, officially titled An observation record of my fiancée, who is a self-proclaimed villainess, is all set to start airing on April 6th. For those who aren't familiar, the story is quite a fun take on the villainess trope. It follows Bartia, who realizes she has been reincarnated into the world of a maiden game as the villainess. She gets engaged to the crown prince, Cecil, but instead of trying to be the hero, she actually struggles quite hard to "destroy" herself so the game’s plot stays on track. Of course, things don’t always go as she plans because Cecil finds her antics way too interesting. This unique dynamic is a big part of why you need to read and watch an observation log of my fiancée who calls herself a villainess as it keeps the audience hooked.
The production looks quite promising for the 2026 Spring Cool season. We already have a list of the main cast members, and it’s a star-studded one for sure.

Anime Production Information
- Series Name: An observation record of my fiancée, who is a self-proclaimed villainess.
- Broadcast Season: 2026 Spring Cool
- Main Voice Cast:
- Yusuke Kobayashi
- Miyu Tomita
- Yume Miyamoto
- Ayumu Murase
- Ayaka Ohashi
- Shun Horie
- Iori Saeki
So, we just have to wait for April to see how this adaptation turns out. The character designs and the voice acting seem like they will be spot on. Make sure to keep an eye out for more updates as the premiere gets closer!