The live-streamed “Overlord IV Special” program announced on Saturday that the Gekijō-ban Isekai Quartet ~Another World~ (Isekai Quartet the Movie: Another World) crossover anime film will open early this summer.
The film will feature the returning cast and staff from the anime’s first two seasons. Minoru Ashina (Kaiju Girls, Pure Pure Purea Desu Overlord shorts) will write the script and direct the anime. Minoru Takehara will serve as both character designer and chief animation director. Studio Puyukai (Kaiju Girls, Lord Marksman and Vanadis, Pure Pure Purea Desu Overlord shorts) will animate the work.
The anime is a crossover series between the Re:Zero, Overlord, Konosuba, and The Saga of Tanya the Evil franchises. Isekai Quartet 2 also features characters from The Rising of the Shield Hero franchise.The first season premiered in Japan in April 2019. Crunchyroll and Funimation both streamed the first season as it aired.
Source: Overlord IV Special