Bungo Stray Dogs is getting a new spinoff manga. Shikiji Sorakura draws "The Day I Took In Dazai" (Dazai o Hirotta Hi), a manga adaptation of the bonus novel from the 2022 live-action Bungō Stray Dogs the Movie: Beast — launching July 3, 2026 in Kadokawa's Young Ace, starting with the August issue.
Quick answer
Bungo Stray Dogs: The Day I Took In Dazai is a new spinoff manga by Shikiji Sorakura, launching July 3, 2026 in Young Ace (Kadokawa, August issue). It adapts the "Dazai o Hirotta Hi" novel, originally a moviegoer bonus for the 2022 live-action Beast film, and explores the beginning and ending of the "Black Era" around Osamu Dazai and Oda Sakunosuke. The main series, by Kafka Asagiri and Sango Harukawa, concluded its first part in March 2026 after debuting in Young Ace in December 2012. SenpaiRanks tracks the Bungo Stray Dogs anime across its seasons on both ranking axes — handy if the spinoff sends you back to the source.
What the spinoff covers
The Black Era is the prequel sweet spot for Bungo Stray Dogs fans — the Port Mafia stretch that defined Dazai before the Armed Detective Agency, and his bond with Oda Sakunosuke. Adapting the Beast-film bonus novel pulls that material into manga form for the first time, which is the kind of canon-adjacent deep cut that rewards readers already invested in the franchise rather than newcomers.
Where it sits in the franchise
This lands right as the main manga closes its first part, so Kadokawa is keeping the franchise active without rushing the next core arc. The anime remains the entry point for most viewers — five-plus seasons, films, and now a growing shelf of spinoffs. On SenpaiRanks, the Bungo Stray Dogs seasons are ranked individually, so you can see which ones the community rates highest before deciding where to start or rewatch. If you're browsing this summer's other launches, the best summer 2026 anime hub and the live rankings cover the slate, and recent premieres like Victoria of Many Faces and A Livid Lady's Guide to Getting Even round out the calendar.
The read
A spinoff built on the Black Era is fan-service in the best sense — it deepens the part of the story most readers care about. It won't replace the main manga or anime, but for anyone who rates Dazai's early years as the franchise's high point, it's an easy add. Rate the Bungo Stray Dogs seasons on SenpaiRanks to mark where the anime stands while the manga side expands.
Frequently asked questions
Q: When does the Bungo Stray Dogs spinoff manga launch?
A: July 3, 2026, in Kadokawa's Young Ace magazine, starting with the August issue.
Q: Who is writing the spinoff?
A: Shikiji Sorakura draws the manga adaptation.
Q: What is 'The Day I Took In Dazai' about?
A: It adapts the "Dazai o Hirotta Hi" novel and explores the beginning and ending of the Black Era around Osamu Dazai and Oda Sakunosuke.
Q: Is the main Bungo Stray Dogs manga finished?
A: The original manga by Kafka Asagiri and Sango Harukawa concluded its first part in March 2026.
Q: Where can I watch the Bungo Stray Dogs anime?
A: Its multiple seasons stream across major platforms; SenpaiRanks lists where-to-watch neutrally per season.
Q: How does Bungo Stray Dogs rank on SenpaiRanks?
A: Each season is ranked on the Consensus and Quality axes. You can rate any season to add your read.