Isekai Quartet is a Japanese anime series that serves as a chibi-style crossover between the light novel series KonoSuba, Overlord, Re:Zero - Starting Life in Another World, The Saga of Tanya the Evil, Kono Yuusha ga Ore Tueee Kuse ni Shinchou sugiru and Tate no Yuusha no Nariagari. The series is basically an isekai story that focuses on yet another world. Isekai Quartet is a comedy experience that no one should miss.