"Sore, Sunawachi Sketch" is a short-form anime series that revolves around the daily lives of three art club members at a high school. The narrative primarily focuses on their interactions, creative endeavors, and the humorous, slice-of-life moments that arise from their shared experiences. The central characters include a reserved and diligent student, a cheerful and energetic classmate, and a quirky, often unpredictable upperclassman. Each episode presents self-contained vignettes, highlighting their artistic pursuits, school activities, and the lighthearted dynamics of their friendships.

The plot is episodic, with no overarching storyline, instead emphasizing the characters' growth and the small, relatable challenges they face. The series often incorporates themes of creativity, camaraderie, and the joys of everyday life, using the art club as a backdrop to explore these ideas. The humor is gentle and situational, deriving from the characters' distinct personalities and their reactions to mundane yet amusing scenarios. While the narrative lacks high-stakes drama, it excels in capturing the charm of ordinary moments, making it a comforting and accessible watch. The characters' interactions are the driving force of the series, with their distinct quirks and chemistry providing a consistent source of entertainment.