Hataraku Saibou Neko

Red Blood Cell, White Blood Cell (Neutrophil), and their team put on their cat ears as they work, day and night to fight the invaders big and small to make sure these feline friends are happy, healthy, purring machines! Explore the action taking place inside a cat’s body, in Cells at Work! style, while also seeing the perspective from the humans who provide a home and tender loving care.
(Source: Kodansha USA)