Shikako, the co-creator and artist behind Manchuria Opium Squad, has died after a battle with choroidal melanoma, a rare and aggressive form of eye cancer, marking a profound loss for the manga industry and fans of the long-running series.
The announcement came directly from the editorial team overseeing the manga, confirming that Shikako passed away on November 8. Choroidal melanoma is an uncommon cancer that forms in the eye and is often difficult to detect early, making the news both sudden and devastating for readers and colleagues alike. As the confirmation spread, tributes quickly followed, highlighting not only Shikako’s artistic talent but also their dedication to storytelling and collaboration.
According to the editors, Shikako had expressed a clear wish before their passing: the manga should continue, even if another artist had to step in. In response, the editorial staff at Young Magazine stated they intend to honor that request. However, they also clarified that no concrete decision has been made regarding a replacement artist. At present, discussions remain open, and the future production schedule of the series has not been finalized.
Tsukasa Monma, the series’ writer and Shikako’s long-time creative partner, shared a heartfelt message reflecting on their collaboration. Monma emphasized the depth of their shared vision and revealed that many untold stories and unexplored worlds had been planned. Their words carried both grief and gratitude, underscoring how deeply intertwined their creative process had become over the years. Rather than focusing solely on loss, Monma’s statement also highlighted the ambition and scope of what they hoped to build together.
Adding to the remembrance, Young Magazine editor Hidemi Shiraki, who directly managed the series, spoke openly about working alongside Shikako. Shiraki recalled moments from their time together, describing Shikako as a committed professional who consistently pushed the visual identity of the manga forward. These reflections offered readers a behind-the-scenes look at the human relationships that shape serialized manga, reminding fans that each chapter represents years of shared effort.
Manchuria Opium Squad first launched in Kodansha’s Comic Days platform in April 2020. From the beginning, the series stood out for its intense historical themes, sharp narrative pacing, and striking artwork. It ran on Comic Days until September 2021, building a steady following before transitioning to Kodansha’s Weekly Young Magazine. The move marked a new phase for the manga, placing it in a more competitive print environment while expanding its reach.
Also: All Confirmed Anime Movies Releasing in 2026
The series officially joined Weekly Young Magazine with the magazine’s 43rd issue of 2021. Since then, it has continued to gain attention for its bold subject matter and mature storytelling. Kodansha has also ensured international accessibility by releasing the manga in English through its K Manga app, allowing global readers to follow the story alongside its Japanese audience.
Just days before Shikako’s passing, Kodansha shipped the 22nd collected volume of Manchuria Opium Squad on November 6. The timing adds emotional weight to the release, as the volume now stands as one of Shikako’s final completed contributions to the series. For many fans, it represents both a continuation of the story and a lasting testament to the artist’s craft.
The question now facing readers and publishers alike is how the series will move forward. Replacing an artist is never simple, especially for a manga so closely associated with a specific visual style. Even so, Shikako’s expressed wish for the story to continue provides a guiding principle. If the series does resume, it will do so under the responsibility of preserving both narrative integrity and artistic respect.
In the broader context of the manga industry, Shikako’s death highlights the intense pressures creators face, often working under demanding schedules while dealing with personal health struggles out of the public eye. At the same time, the response from editors, collaborators, and fans shows how deeply creators are valued beyond their work alone.
As Manchuria Opium Squad stands at this crossroads, one thing remains clear: Shikako’s influence will not fade. Their artwork, storytelling instincts, and creative ambition have left a permanent mark on the series and on readers who followed it from the start. Whether the manga continues with a new artist or pauses indefinitely, Shikako’s legacy is already firmly established within modern manga history.
