A novice red blood cell and a relentless white blood cell work together to protect their human from invading germs, pathogens and other threats.

Takagi, now grown up, revisits her middle school as a trainer. She encounters Nishikata, her former classmate she used to tease, now a PE teacher there. Their playful dynamic resumes,…

Akio, an HR worker, visits his transformed mother Fukue in Tokyo. Baffled by her new lively self, he encounters a friendly neighbor. Through these interactions, Akio gains new perspectives, noticing…