The idea of isekai has been around since the 60s, but for many, the first recognized isekai anime came in 1983 with Battle Aura Dunbine. Since then, isekai grew in popularity until it exploded in the 2010s with titles like Sword Art Online.
The idea of isekai has been around since the 60s, but for many, the first recognized isekai anime came in 1983 with Battle Aura Dunbine. Since then, isekai grew in popularity until it exploded in the 2010s with titles like Sword Art Online.