"Bungo Stray Dogs Wan!" is a spin-off comedy series based on the original "Bungo Stray Dogs" franchise, offering a lighthearted and slice-of-life take on the characters and their interactions. The story unfolds in a world where individuals possess supernatural abilities tied to literary figures, with the primary focus on the members of the Armed Detective Agency and their rivals, the Port Mafia. Unlike the main series, which emphasizes action and drama, "Bungo Stray Dogs Wan!" adopts a chibi art style and episodic format, presenting humorous and whimsical scenarios.

The narrative revolves around the daily lives of the Armed Detective Agency members, including Atsushi Nakajima, a kind-hearted young man with the ability to transform into a white tiger, and his mentor, Osamu Dazai, whose eccentric personality and suicidal tendencies often lead to comedic situations. Other key characters include Ryunosuke Akutagawa, a brooding Port Mafia member with a grudge against Atsushi, and Doppo Kunikida, the Agency’s strict and idealistic strategist. The series explores their interactions in a more relaxed and comedic context, often highlighting their quirks and relationships.

Episodes feature self-contained stories, such as Dazai’s failed attempts at finding the perfect suicide method, Atsushi’s struggles with his tiger form, and the playful rivalry between the Agency and the Port Mafia. The series also introduces moments of camaraderie and teamwork, showcasing the bonds between characters in a light-hearted manner. While the stakes are lower compared to the main series, the humor and charm of "Bungo Stray Dogs Wan!" lie in its ability to reimagine the characters in a more comedic and endearing light, making it an enjoyable addition to the franchise for fans seeking a break from the darker tones of the original story.