"Bakunyū BOMB" is a comedic and ecchi anime series that revolves around the life of a young man named Ryouta Sakamoto, who works as a delivery boy for a small courier service. His mundane life takes an unexpected turn when he encounters a mysterious woman named Rinko, who possesses an extraordinary physical trait—her bust size is unnaturally large, to the point of being almost surreal. This peculiarity becomes a central element of the story, as Rinko’s appearance and the attention it garners often lead to chaotic and humorous situations.

The narrative explores Ryouta’s interactions with Rinko and other characters, including his coworkers and clients, as he navigates the challenges of his job while dealing with the absurdity that Rinko brings into his life. The series frequently employs slapstick comedy and exaggerated scenarios, often driven by Rinko’s physical attributes and the reactions they provoke. Despite the comedic tone, the story occasionally touches on themes of self-acceptance and societal perceptions of beauty, though these elements remain secondary to the humor and ecchi content.

The characters are designed to fit within the comedic and ecchi framework, with Rinko serving as the primary source of both humor and conflict. Ryouta, as the straight man, often finds himself caught in the middle of the chaos, trying to maintain some semblance of normalcy. The supporting cast includes a variety of eccentric individuals, each contributing to the series’ over-the-top tone. The plot is episodic, with each episode presenting a new scenario or challenge for Ryouta and Rinko to navigate, often culminating in a humorous or absurd resolution. The series does not delve deeply into character development or complex storytelling, instead focusing on delivering consistent comedic and ecchi entertainment.