The human body is made up of roughly 37 trillion cells—and this is where our story begins!

Follow the daily adventures of the Red Blood Cell and the White Blood Cell as they navigate the incredible and often unbelievable events happening inside the human body.

What happens when viruses or bacteria invade? How does the body react to allergies, injuries, or wounds?

This manga reveals the amazing inner workings of the body and the tireless efforts of cells to protect it. Join us on a journey through 24 hours and 365 days of non-stop action, as these microscopic heroes work without rest or fatigue!