"PUCHIM@S" is a short-form anime series that serves as a spin-off of "The iDOLM@STER," focusing on the chibi-fied versions of the original characters. The series is episodic, with each episode running approximately two minutes, and it emphasizes lighthearted, comedic scenarios rather than a continuous plot. The narrative revolves around the daily lives and interactions of the idol group members, portrayed in a super-deformed, miniature style. The characters retain their core personalities from the main series but are placed in exaggerated, humorous situations that highlight their quirks and relationships.

The main cast includes Haruka Amami, a cheerful and energetic idol; Chihaya Kisaragi, a serious and reserved singer; Miki Hoshii, a confident and flirtatious performer; Yukiho Hagiwara, a shy and easily frightened girl; and Makoto Kikuchi, a tomboyish and athletic idol. Other members of the group, such as the mature and responsible Azusa Miura, the diligent and hardworking Iori Minase, and the calm and collected Ritsuko Akizuki, also play significant roles. The series often features their interactions with the producer, who is frequently the target of their playful antics or misunderstandings.

The humor in "PUCHIM@S" is derived from slapstick comedy, exaggerated expressions, and absurd situations. For example, Haruka’s boundless energy often leads to chaotic outcomes, while Yukiho’s timid nature results in comedic overreactions to mundane events. The series also includes parodies of common idol tropes and references to the main "The iDOLM@STER" storyline, though these are presented in a simplified and comedic manner. The lack of a central plot allows for a focus on character-driven humor, with each episode offering a self-contained story that highlights the personalities and dynamics of the group.

Overall, "PUCHIM@S" is a light-hearted, comedic take on the idol genre, designed to entertain with its quick, bite-sized episodes and charming character interactions. It serves as a complementary piece to the main series, offering fans a more whimsical and exaggerated perspective on the lives of their favorite idols.