On an alternate version of Earth, humanity has retreated behind three tiers of 160-foot-high walls to protect themselves from giant humanoid monsters called Titans. These creatures don't seem to be sentient, and appear to exist only to kill and eat humans. For over a century, humans lived this way, protected by the walls - until a 200-foot-tall yamato appeared and broke a hole in them. The series follows protagonists Mikasa and Eren, as well as the other new recruits of the Survey Corps, as they work to stop the newly adapted Titan invasion.

Attack on Titan started in 2013, but it took a four-year hiatus before returning with a 12-episode second season in 2017. Due to its combination of bloody horror, action, character drama, and politics, the show has been responsible for getting a lot of people hooked on anime.

Cells at Work! imagines the human body as a city inhabited by anthropomorphized versions of cells. The story follows a red blood cell delivery person, appropriately named Red Blood Cell, as she works together with the other cells to keep the body they inhabit healthy and fight off any foreign microbes.

The series is animated by David Production, who animated the four seasons of JoJo's Bizarre Adventure that have aired so far, and the director Kenichi Suzuki directed the first three of those JoJo seasons. With the strange conceit of the show, this seems like a potentially ideal pairing, given not only how well-animated those seasons of JoJo are, but also because of Kenichi and David's ability to take a weird story and make it interesting beyond just being strange. This seems like a good show that a lot of people will watch.