"Mushishi: Zoku-Shō: Suzu no Shizuku" is a two-part special that serves as a continuation of the "Mushishi" series, adapting the final chapters of Yuki Urushibara's manga. The story revolves around Ginko, a wandering Mushi master, as he encounters a mysterious phenomenon involving a young girl named Suzu and her connection to a rare and dangerous Mushi known as the "Waterdrop Bell."

The narrative begins with Ginko arriving in a remote mountain village where he meets Suzu, a girl who has been cursed by the Waterdrop Bell Mushi. This Mushi resides within her body, causing her to produce a unique, bell-like sound whenever she moves. The sound attracts other Mushi, creating a perilous situation for both Suzu and those around her. Ginko learns that Suzu's condition is tied to her family's history, particularly her father, who had previously encountered the same Mushi and attempted to use its power for personal gain. This act disrupted the natural balance, leading to the curse that now afflicts Suzu.

As Ginko investigates, he discovers that the Waterdrop Bell Mushi is part of a larger cycle involving the flow of life and death. The Mushi's presence in Suzu's body is not merely a curse but a manifestation of the interconnectedness between humans and the natural world. Ginko must navigate the delicate balance between these forces to find a solution that will free Suzu without causing further harm. The story explores themes of responsibility, the consequences of human interference with nature, and the inevitability of change.

The special maintains the episodic and contemplative tone of the series, with Ginko serving as a guide through the enigmatic world of Mushi. His calm and methodical approach to understanding and resolving supernatural phenomena is central to the narrative. Suzu, as the focal point of the story, embodies the struggle between human desires and the natural order, providing a poignant exploration of the series' recurring themes. The resolution of her predicament underscores the series' emphasis on harmony and acceptance, as Ginko helps her come to terms with her condition and its implications for her future.