During a panel held at the special event KADOKAWA Light Novel EXPO 2020, a new promotional video was released for the anime adaptation of the light novels written by Natsume Akatsuki (author of Konosuba!) and illustrated by Kakao Lanthanum, Sentouin, Hakenshimasu! (also known as Combatants Will Be Dispatched!). In the preview, it was revealed that the series will premiere on April 4 on Japanese TV stations.
On the other hand, details about the musical themes of the anime were released. The opening theme is titled "No.6" and is performed by voice actress and singer, Miku Itou. The closing theme is titled "Home Sweet Home" and will be performed by the main cast of the series (Miyu Tomita, Sayaka Kikuchi, Natsumi Murakami and Minami Takahashi).
In addition, new additions to the series' voice cast were announced.
Sayaka Kikuchi as Snow.
Natsumi Murakami as Rose.
Minami Takahashi as Grimm.
Natsume Akatsuki began publishing the light novels through Kadokawa Publishing House's Sneaker Bunko imprint in November 2017. A manga adaptation by Masaaki Kiasa has been published since March 2018. International distribution of the anime will be exclusively through the Funimation platform.
Synopsis of Sentouin, Hakenshimasu!
The Kisaragi secret society has a mission: to take over the world! They claim to be an evil organization, but their scientist is eccentric, their erotic female generals wear little clothing, and they are surprisingly concerned about the fate of the world! No. 6 is a Kisaragi "Fighter," which means his body has been rebuilt to be stronger and obey the generals' orders. His latest mission? To reconnoiter on an unknown alien planet with his new companion, the expressionless android Alice. There, he meets a busty knight... riding a unicorn!!! Thus begins his fun invasion of a magical fantasy world!
Source: Comic Natalie
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