Review of Isekai Quartet
Honestly, there is not much to say about Isekia Quartet. Its a crossover of 4 popular isekia shows at a typical Japanese high school with everything down in the chibi art style. There are some enjoyable jokes, but it nothing earthshaking. If one has watched at least 2 or more series featured here, then there is some enjoyment to be found. Isekai quartet is a crossover show of Re Zero, Overlord, Saga of Tanya the Evil, and Konosuba. They all are magically transported to a Japanese high school and hijinks ensue. They are jokes and barbs thrown between these characters, and they go throughall the high school anime cliches. I enjoyed it reasonably well. The episodes are short too about 10 minutes each.
If you have watched 2 or more of the listed shows, you might enjoy this. For me, this was fine, but if this were never made, I would not think I would have lost out.