"Wasimo" is a Japanese anime series that revolves around the daily life and adventures of Wasimo, a robot created by a young boy named Ryota. The series is set in a near-future world where advanced robotics is integrated into everyday life. Wasimo, short for "Wasuremono Shūkanji Mōdo" (Forgetful Summoning Mode), is a quirky and somewhat malfunctioning robot with a unique personality. Despite being designed to assist with household tasks, Wasimo often forgets its primary functions and ends up causing humorous and chaotic situations.

Ryota, the creator of Wasimo, is a bright and inventive elementary school student who aspires to be a great inventor. He built Wasimo as a school project, but the robot's unpredictable behavior frequently leads to unexpected challenges. Ryota's younger sister, Kanon, is also a central character, often observing and commenting on the antics of Wasimo with a mix of amusement and exasperation. The siblings' interactions with Wasimo form the core of the series, highlighting themes of family, creativity, and the trials of innovation.

The episodic nature of "Wasimo" focuses on various scenarios where Wasimo's forgetfulness and unique abilities create both problems and solutions. Whether it's attempting to help with chores, participating in school events, or getting involved in Ryota's experiments, Wasimo's actions often result in comedic outcomes. The series balances lighthearted humor with moments that emphasize the bond between Ryota and his creation, showcasing the ups and downs of their relationship.

Supporting characters include Ryota and Kanon's classmates, teachers, and neighbors, who occasionally become involved in Wasimo's escapades. These interactions add depth to the narrative, providing a broader perspective on how Wasimo's presence impacts the community. The series maintains a family-friendly tone, making it accessible to a wide audience while exploring the potential and pitfalls of artificial intelligence in a relatable and entertaining manner.