"Doron Chibimaru" is a manga series set in a fantastical version of feudal Japan, blending historical elements with supernatural themes. The protagonist, Chibimaru, is a young boy who serves as a "doron," a type of exorcist tasked with combating malevolent spirits known as "mononoke." These spirits often manifest as grotesque creatures or vengeful entities, posing threats to both individuals and entire communities. Chibimaru wields a unique weapon called the "Doron Changer," a mystical tool that allows him to transform into various forms to battle these supernatural foes.

The narrative unfolds as Chibimaru travels across the land, encountering a variety of characters and situations that test his skills and resolve. Alongside him is his companion, a talking fox named Kitsune, who provides guidance and comic relief. Kitsune also possesses knowledge of the spiritual world, aiding Chibimaru in understanding the origins and weaknesses of the mononoke they face. The duo’s journey is episodic in nature, with each chapter or arc focusing on a specific mononoke and the human drama surrounding its emergence. These stories often explore themes of human emotion, such as grief, jealousy, and regret, which are frequently the catalysts for the mononoke's creation.

As the series progresses, a larger narrative thread begins to emerge, connecting Chibimaru’s missions to a broader conflict involving powerful entities and ancient curses. The protagonist’s past is gradually revealed, shedding light on his connection to the doron lineage and the responsibilities he must bear. The series balances action-packed battles with moments of introspection, as Chibimaru grapples with the moral complexities of his role and the consequences of his actions.

The supporting cast includes a range of characters, from villagers seeking help to rival exorcists with their own agendas. Some of these characters become recurring figures, adding depth to the world and its lore. The manga’s setting is richly detailed, drawing on Japanese folklore and mythology to create a vivid backdrop for the story. The interplay between the human and spiritual realms is a central theme, with the narrative often highlighting the blurred lines between good and evil, as well as the enduring impact of human actions on the supernatural world.