Story Arcs

List of story arcs in Bungo Stray Dogs. For the timeline, see Timeline.

Fifteen Arc

Fifteen Arc
The ghost of the previous boss haunts the Port Mafia. At fifteen, Osamu Dazai, under the careful eye of Ōgai Mori, receives his first mission to investigate the matter. The investigation leads him to Chūya Nakahara, the infamous "King of the Sheep", a rival group of juveniles. With his own past unknown to him, and the lives of Sheep members on the line thanks to the Port Mafia, Chūya agrees to work alongside Dazai in order to unveil the truth behind the Port Mafia's former boss.
Manga		Anime
Number of Chapters	8	Number of Episodes	3
Prologue Phase. 01 Phase. 02 Phase. 03 Phase. xx Phase. 04 Phase. 05 Epilogue		26. Dazai, Chūya, Fifteen Years Old 27. The God of Fire 28. Only a Diamond Can Polish a Diamond

Dark Era Arc

Dark Era Arc
Before joining the Armed Detective Agency, Osamu Dazai was the youngest executive with the Port Mafia, the most notorious underground crime syndicate in all of Yokohama. When one of their colleagues suddenly goes missing, Dazai and fellow Port Mafia member, Sakunosuke Oda are tasked with conducting an investigation.
Manga		Anime
Number of Chapters	6	Number of Episodes	4
Prologue Chapter 1 Chapter 2 Chapter 3 Chapter 4 Epilogue		13. The Dark Age 14. Nowhere to Return 15. A Room Where We Can Someday See the Ocean 16. Bungo Stray Dogs

Azure Messenger Arc

Azure Messenger Arc
Doppo Kunikida is an idealist and a straitlaced detective at the Armed Detective Agency, he's paired up with the agency's newest hire: a suspicious, eccentric, suicide-obsessed man named Osamu Dazai. Their first case together turns out to be far more complicated than Kunikida anticipated -- and it looks like the detective agency's sworn enemy, the Port Mafia, is somehow involved, too!
Manga		Anime
Number of Chapters	8	Number of Episodes	2
Prologue Chapter I Chapter II Interlude I Chapter III Chapter IV Interlude II Epilogue		6. The Azure Messenger 7. Love for the Disease Called Ideals

Armed Detective Agency vs. Port Mafia Arc

Armed Detective Agency vs. Port Mafia Arc
The Armed Detective Agency vs Port Mafia Arc is the first arc of Bungō Stray Dogs. Serving as the introductory arc, it showcases the protagonist, Atsushi Nakajima, as he adapts to live with his ability and meets both the Armed Detective Agency and Port Mafia, becoming the epicenter of their latest conflict.
Manga		Anime
Number of Chapters	16	Number of Episodes	10
1. Looking the Gift Tiger in the Mouth 2. A Certain Explosive 3. Yokohama Gangster Paradise, Part 1 4. Yokohama Gangster Paradise, Part 2 5. The Fatalist's Sorrow 6. Murder on D Street 7. Kill A Man and Die Thee Too, Part 1 8. Kill A Man and Die Thee Too, Part 2 9. Beauty, Hushed Like a Statue 10. Detective Boys 11. Back in the Day... 12. Rashomon and the Tiger 13. The Rupturous Detective Agency 14. An Unsuitable Occupation for Her		1. Fortune is Unpredictable and Mutable 2. A Certain Bomb 3. Yokohama Gangster Paradise 4. The Tragedy of the Fatalist 5. Murder on D Street 8. Teaching Them to Kill; Then to Die 9. The Beauty is Quiet Like a Stone Statue 10. Rashomon and the Tiger 11. First, an Unsuitable Profession for Her. Second, an Ecstatic Detective Agency

The Guild Arc

The Guild Arc
The Guild Arc is the second main narrative arc of Bungō Stray Dogs, and introduces The Guild, a foreign ability-based organisation as a new antagonist group. Led by Francis Scott Key Fitzgerald, the Guild attempts to take over Yokohama. With this new enemy rising, the old bones of contention are put aside and the distinction between foes and allies is blurred as the Agency has to ensure his survival.
Manga		Anime
Number of Chapters	20	Number of Episodes	7
15. Constantly Pushed to the Past, Part 1 16. Constantly Pushed to the Past, Part 2 17. The First Job 18. Flowers and Autumn Leaves, Snow and Gold 19. The Three-Way Battle 20. A Single Lemon 21. The Brother and the Devil 22. The Strategy of Conflict 23. The Grapes of Wrath Ripen in His Eyes, Part 1 24. The Grapes of Wrath Ripen in His Eyes, Part 2 25. Q 26. Will of Tycoon 27. Upon the Shattering Shores 28. The Emergency Plan 29. Even If My Head Be Mistaken 30. The Silent Tower and the Raven's Feast 31. The Twin Darkness 32. Poe and Ranpo 33. A White Whale, into the Oceans of Heaven 34. The Last Tycoon 35. Rashōmon, the Tiger and the Last Tycoon 36. If I May Lay Down This Burden Today 37. Closing the Party		12. Born Back Ceaselessly into the Past 17. Three Companies Conflict 18. The Strategy of Conflict 19. Will of Tycoon 20. Though the Mind May be Wrong 21. Double Black 22. Part 1: Poe and Ranpo / Part 2: Moby Dick, Swimming in the Sky 23. Rashōmon, The Tiger, and The Last Emperor 24. If I May Shed Away My Burden Now

The Guild Aftermath Arc

The Guild Aftermath Arc
After the Guild War, members of the Armed Detective Agency go back to their everyday lives. Fitzgerald, on the other hand, is living in the slums.
Manga		Anime
Number of Chapters	8	Number of Episodes	5
38. Slap the Stick 39. Portrait of a Father 40. Walking Alone 41. Addict 42. Sins Granted by the Hand of God 43. Cherrirs! 44. Fitzgerald Rising 45. Fix it, Master Craft		25. Walking Alone 29. My Ill Deeds Are the Work of God 30. Slap the Stick and Addict 31. Part 1: Herurisu! / Part 2: Portrait of a Father 32. Fitzgerald Rising

Cannibalism Arc

Cannibalism Arc
In the third main narrative arc, a new criminal organization called the Rats in the House of the Dead makes its existence known to the Agency. Little is known about it and its alleged leader, Fyodor Dostoevsky, but a downward spiral begins when Yukichi Fukuzawa is attacked and left gravely ill. Both him and the Port Mafia's leader, Ōgai Mori, have been infected with a virus named Cannibalism. After forty-eight hours, the virus will destroy the hosts' internal organs, unless one of them dies before the virus outbreak, thus nullifying the other's illness. The Agency and the Port Mafia start a blood feud to save their respective leaders before it is too late.
Manga		Anime
Number of Chapters	8	Number of Episodes	5
46. The Masked Assassin 47. Mutual Destruction, Part 1 48. Mutual Destruction, Part 2 49. Mutual Destruction, Part 3 50. Mutual Destruction, Part 4 51. Echo, Part 1 52. Echo, Part 2 53. Echo. Part 3		33. The Masked Assassin 34. Cannibalism (Part 1) 35. Cannibalism (Part 2) 36. Cannibalism (Part 3) 37. Echo

Decay of Angels Arc

Decay of Angels Arc
A terrorist known as the "Decay of Angels" lead the Armed Detective Agency into a trap that made them criminals. Meanwhile, Dazai was arrested by a hunting dog.
Manga		Anime
Number of Chapters		Number of Episodes
54. The Perfect Murder, The Perfect Killer, Part 1 55. The Perfect Murder, The Perfect Killer, Part 2 56. The Perfect Murder, The Perfect Killer, Part 3 57. Sunday Tragedy, Part 1 58. Sunday Tragedy, Part 2 59. Dogs Hunt Dogs, Part 1 60. Dogs Hunt Dogs, Part 2 61. Dogs Hunt Dogs, Part 3 62. Dogs Hunt Dogs, Part 4 63. Enemies of Society 64. You and I Are Children of Sin 65. Dreaming of Butterflies, Part 1 66. Dreaming of Butterflies, Part 2 67. The Sorrow of Those Without Wings, Part 1 68. The Sorrow of Those Without Wings, Part 2 69. Record of a Jailbreak 70. Record of a Jailbreak, Part 2 71. Bungou Hound Dogs, Part 1 72. Bungou Hound Dogs, Part 2 73. Bungou Hound Dogs, Part 3 74. Skyfall, Part 1 75. Skyfall, Part 2 76. Skyfall, Part 3 77. Skyfall, Part 4 78. To Threaten God, Part 1 79. To Threaten God, Part 2 80. To Threaten God, Part 3 81. The Strongest Man, Final Part 82. The Ultimate Ally 83. Towards the Full Answer, Part 1 83.5. Towards the Full Answer, Part 2 84. HERO VS. CRIMINAL 85. HERO VS. CRIMINAL Part 2 86. HERO VS. CRIMINAL Part 3 87. HERO VS. CRIMINAL Part 4