Get Ready for Gyakusatsu Kigen
Exciting news for manga enthusiasts! A brand new series titled Gyakusatsu Kigen, or Genocide Origin, is set to make its highly anticipated debut. This collaborative effort brings together the talents of Shiwasu Hoshikawa and writer Yuichiro Momose. Fans can mark their calendars for May 25, as the manga will launch in the upcoming issue of Kodansha's Afternoon magazine. This promises to be a significant addition to the manga landscape, combining established artistic prowess with compelling storytelling from a renowned writer.
Shiwasu Hoshikawa's Acclaimed Adaptations
Shiwasu Hoshikawa is no stranger to adapting popular light novel series, having gained considerable recognition for their work on the Bungo Stray Dogs universe. Hoshikawa launched the Bungo Stray Dogs STORM BRINGER manga adaptation in Kadokawa's Monthly Shonen Ace magazine in January 2025. This manga skillfully brings to life the eighth light novel of the same title, originally penned by Kafka Asagiri and Sango Harukawa. The first compiled book volume for STORM BRINGER shipped on September 26, giving readers a tangible piece of this exciting adaptation.
Prior to STORM BRINGER, Hoshikawa successfully concluded the Bungo Stray Dogs Dazai, Chuuya, Age Fifteen manga. This series wrapped up with its fourth and final compiled book volume, which was released in October 2024. Launched in Kadokawa's Shonen Ace magazine in September 2022, the manga delves into the past of the iconic characters Osamu Dazai and Chuuya Nakahara, based on the seventh light novel volume of the same title that shipped in August 2019. For international fans, Yen Press conveniently publishes the manga in English, ensuring a wider audience can enjoy Hoshikawa's artistic interpretations of these beloved characters. The transition from established works to an original series like Gyakusatsu Kigen highlights Hoshikawa's versatility and growing influence in the manga world.
Yuichiro Momose's Expansive Creative Universe
Yuichiro Momose, the writer contributing to Gyakusatsu Kigen, possesses a rich and varied background that extends beyond traditional manga. His creative vision is evident in projects like Datewars, which launched in August 2025. This ambitious "timeless music IP project" aims to revitalize musical styles from the 1970s to the 2000s. Datewars boasts an impressive creative team, with Hanaharu Naruko, known for works such as Kamichu and Gargantia on the Verdurous Planet, serving as the character designer. Mino joins as music producer, video creator, and music commentator. The project plans to feature fourteen distinct voice actresses and is poised for extensive expansion into various media, including manga, anime, mobile games, concerts, films, and even stage events. This broad scope demonstrates Momose's capability for developing intricate and multi-faceted narratives that can thrive across different platforms.
Momose is also widely recognized as the main scenario writer for the highly successful Hypnosis Mic project. This rap-themed initiative from King Records, which debuted in September 2017, features talented voice actors performing rap in the personas of original characters. Hypnosis Mic quickly gained immense popularity, releasing its first full album, Enter the Hypnosis Microphone, in April 2018. The project's cultural impact was further cemented when it earned the top spot as the most popular voice actor Twitter account in Japan for 2018, underscoring Momose's ability to craft compelling narratives and character interactions that resonate deeply with audiences. His experience in world-building and character development for Hypnosis Mic will undoubtedly bring a unique depth to the storytelling of Gyakusatsu Kigen.
A Powerful New Manga Collaboration
The collaboration between Shiwasu Hoshikawa's distinctive art style and Yuichiro Momose's proven narrative capabilities for Gyakusatsu Kigen is undoubtedly one of the most exciting manga announcements of the year. With Hoshikawa's history of bringing intricate characters to life through manga adaptations and Momose's knack for creating expansive, engaging worlds with projects like Hypnosis Mic and Datewars, Gyakusatsu Kigen is set to offer a fresh and captivating story. The debut in Kodansha's Afternoon magazine on May 25 is eagerly awaited by fans looking for innovative and high-quality manga. This new series promises to be a significant work, establishing another milestone in the careers of both creators and captivating readers worldwide. Don't miss the launch of Gyakusatsu Kigen.
