The same four faceless blobs are still arguing about blood type stereotypes, and the show hasn't learned a single thing, which is exactly why it works. Season 2 treats pseudoscience with the flat certainty of a PBS documentary, watching characters defend contradictions they refuse to see in themselves. If you've ever heard someone explain their terrible behavior by pointing at their blood type, this show is roasting you with a smile.

Four blood types return for another round of short comedy sketches built on the personality stereotypes people attach to blood groups. A, B, O and AB are joined by female versions of themselves as they compare how each type handles romance and relationships: what makes a person appealing, how to respond to a disappointing present, and even how to keep racy files hidden on a computer. Whether they end up marooned on a deserted island or sharing a dorm, each type reacts in its own way. The faceless characters play on blood type beliefs popular in Japan and Korea, turning familiar situations into quick gags.