
The Case Book of Arne Drops Main Trailer and Key Visual, Reveals January 6 Premiere
### Synopsis
A main trailer and main key visual have been released for the upcoming The Case Book of Arne TV anime adaptation. The new promotional materials were accompanied by the reveal of the show’s January 6, 2026 JST broadcast premiere (effectively January 7 at 1:29 AM JST), as well as main cast and theme song details: • Mariya Ise is original character Lewis Hartman, who runs a detective agency with their father• Koki Uchiyama is the vampire detective Arne• Aimi Tanaka is boy form Arne• Yuka Nukui is Lynn, the daughter of a noble family• The opening song is Sou‘s “Q.E.D”• The ending song is Watashi Kobayashi‘s “Ningyo no Machi” ©春紫/Vaka, Inc. ©春紫/バカー/アルネ探偵事務所 The Case Book of Arne is inspired by a 2D mystery-adventure game created by Harumurasaki, the story of which Steam describes as such: Arne Neuntöte is a vampire detective who manipulates supernatural powers.Lynn Reinweiß is a nobleman’s daughter who loves vampires.Their worlds should never have crossed, but they join hands to solve a bloody mystery.In the darkest of nights, Lynn finds herself in desperate need of help.Then she wanders into the mysterious city of “Lügenberg”, where non-humans live.Lynn’s world changes drastically when she encounters “Arne”, a vampire who is called “the worst” in the city.And tonight, a new “murder case” has occurred.What is the truth behind the bizarre incidents that take place in a world where humanity and the bizarre intersect?“Come on, human. You may dance merrily under the crimson moon.” The game first debuted in 2017 on the Game Magazine website (Game Magazine is also credited as a developer) with a…
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### Key details
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Easygoing Territory Defense by the Optimistic Lord Premieres January 2026, Reveals New Trailer
### Synopsis
A January 2026 premiere window has been announced for the Easygoing Territory Defense by the Optimistic Lord: Production Magic Turns a Nameless Village into the Strongest Fortified City TV anime. A second trailer was released as well. Beyond these, it was revealed that: • Yoko Hikasa and Shion Wakayama are part of the cast as Panamera and Arut, respectively• The opening theme song is Rei Nakashima‘s “Okirakuze~shon” (previewed in the trailer) Easygoing Territory Defense by the Optimistic Lord started as a Shosetsuka ni Naro web novel by So Akaike in 2020. A light novel series, published under the Overlap Novels label and illustrated by Kururi, debuted in 2021 and has eight volumes as of August 2025. Seven Seas Entertainment describes the premise of the latter as such: Van, fourth son of a marquis, is just a toddler when he realizes he’s been reincarnated. Thanks to his literal lifetime of knowledge, he’s raised as a child prodigy—until his production magic manifests, and it’s the last thing his snooty mage family wants to see! His disappointed father banishes him to a podunk town on the verge of collapse, yet Van can only see the place’s potential. Can our hero’s bastion of battlements build a better life than battle magic ever could?! A Easygoing Territory Defense by the Optimistic Lord manga exists as well. Staff • Director: Tetsuya Tatamitani (the upcoming Go For It, Nakamura!‘s concept director, miComet “Lollipop” music video circus and effect animator, Africa Salaryman)• Animation production: NAZ Cast • Yumi Uchiyama as Van• M.A.O as Till• Mariya Ise as Khamsin Source: Pash! Plus website
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### Key details
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– Names and staff as noted in the article

The Case Book of Arne Anime's New Video Reveals Cast, Song Artists, January 6 Debut
### Synopsis
Mariya Ise, Kōki Uchiyama, Aimi Tanaka, Yuka Nukui star in anime
### What’s going on
Details aren’t fully clear from the source, but this item is developing—hit the link for the latest specifics.
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Easygoing Territory Defense by the Optimistic Lord Anime's 2nd Video Unveils More Cast, Staff, Opening Song, January Debut
### Synopsis
Yōko Hikasa, Shion Wakayama, Kenyū Horiuchi, Chikahiro Kobayashi join anime’s cast
### What’s going on
Details aren’t fully clear from the source, but this item is developing—hit the link for the latest specifics.
### Key details
– See source for final dates/platforms
– Names and staff as noted in the article