with 7 episodes premiered on December 26, 2018

with 13 episodes premiered on July 8, 2018

Inside the human body, roughly 37.2 trillion cells work energetically 24 hours a day and 365 days a year. Fresh out of training, the cheerful and somewhat airheaded Sekkekkyuu AE3803 is ready to take… see more

with 8 episodes premiered on January 10, 2021

The cells of the human body never rest for too long; there's always something new to do and learn every day. At least, that's what Hakkekkyuu U-1146 feels as he rushes to and fro, searching for any p… see more