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Romelia War Chronicle Anime Reveals Theme Songs, October 3 Early Streaming Debut in Video

The staff of the television anime of Ryō Ariyama's Romelia War Chronicle: Even After Defeating the Demon King, Humanity Still Seems Doomed, So I Formed a Military Force (Romelia Senki: Maō o Taoshita Ato mo Jinrui Yabasō Dakara Guntai Soshiki Shita) light novel series revealed a new promotional video on Saturday. The below video reveals and previews Chogakusei's opening theme song "Akatsuki ni Naru" (Daybreak Resounds) and Kohta Yamamoto's ending theme song "Nightfall feat. Maika Loubté." The video also reveals the anime will debut on October 3.

The anime will debut first streaming in Japan on U-NEXT, Anime Times, and Netflix on October 3 at 9:00 p.m. The anime will then air on October 5 at 11:30 p.m. on Tokyo MX, BS11, and Sun TV, and will air later that evening on KBS Kyoto. The anime will run for two cours (quarters of a year). Crunchyroll will stream the anime as it airs.

The anime stars:

• Yuna Nemoto as Romelia von Graham
• Jin Ogasawara as Al
• Tomohiro Ōno as Ray
• Yūya Hirose as Henri Lleus Lionel
• Sayaka Senbongi as Elizabeth
• Mariya Ise as Ekaterina
• Asaka as Ryoki
• Shōya Chiba as Gran
• Gakuto Kajiwara as Ragn
• Shun Horie as Kyle
• Ryūnosuke Watanuki as Otto
• Hiromichi Tezuka as Hans
• Tomohiro Yamaguchi as Glein
• Ryūichi Hirose as Jinni
• Kenta Hosoda as Tarth
• Tasuku Kaito as Say
• Rikuya Yasuda as Zeze
• Hiroki Matsukawa as Bray
• Taiki Yamashita as Ben
• Sōhei Horikane as Gatt
• Naoki Sakurai as Rhett
• Mizuki Ishii as Shuro
• Hayato Kimura as Merrill
• Shuntaro Hara as Borel
• Hiromu Mineta as Miitya

The anime's staff includes:

• Director: Hiroshi Shirai (unit director for Dragon Ball Super: Super Hero)
• Assistant Director: Takahiro Hirata (episode director for The 100 Girlfriends Who Really, Really, Really, Really, Really Love You first two seasons)
• Series Composition & Screenplay: Aya Satsuki (Solo Camping for Two, A Girl & Her Guard Dog)
• Character Design: Yoshiko Saitō / Yūta Ōtaka
• Art Director: Masakazu Miyake
• Color Design: Yuki Kadomatsu (Stella)
• Director of Photography: Megumi Himeno (GRAPHINICA)
• Photography: GRAPHINICA
• Editing: Misato Takikawa (REAL-T)
• Sound Director: Daiki Yamaki (Klang Klang)
• Sound Effects: Daiki Ogawa (SOUND BOX)
• Sound Production: Bit Grooove Promotion
• Music: KOHTA YAMAMOTO
• Music Production: PONY CANYON
• Animation Production: Atra

Ariyama launched the light novel series as a web novel on the Shōsetsuka ni Narō website in 2019, before being published under Shogakukan's Gagaga Bunko imprint. The series currently has over 550,000 copies in circulation, and ended in its sixth volume in November 2025. Kodama illustrated the first novel volume and Ryō Kamito illustrated volumes 2-6.

The manga series adaptation with art by Ryō Kamito launched on Mag Garden's Mag Comi platform in January 2022.

Seven Seas licensed the novels' manga adaptation, and it describes the story:

After journeying alongside her fiancé on his quest to defeat the Demon King, Romelia is suddenly deemed useless and sent home, her engagement annulled. While the prince and his group return as celebrated heroes, Rome goes home as a disgrace. But she's not the same girl who left her province. While following the adventurers, Rome was the only one without magic or strength but she found her own abilities in trade, negotiation, finances, and gathering information. And now, she plans to use these skills to not only help her family's province, but help the still struggling kingdom. The Demon King may be defeated, but his allies and demons continue to roam.

With only her wits and brilliance, Rome will build an army of her own and keep the kingdom safe—no matter what it takes.

Seven Seas released the third volume on August 11.

Sources: Press release, Romelia War Chronicle anime's website