The isekai genre, which has enjoyed immense popularity in anime over the past decade, appears to be losing its grip as of 2026. Initially propelled to fame by series like 'Sword Art Online', isekai has seen an explosion in quantity, but this has led to a dilution of quality. Many recent isekai titles have failed to capture the same magic, resulting in viewer fatigue. In contrast, the fantasy genre is thriving, with standout series such as 'Frieren: Beyond Journey's End', 'Witch Hat Atelier', and 'Delicious in Dungeon' receiving critical acclaim and revitalizing interest in fantasy narratives. The article predicts that isekai's decline will continue into 2027, allowing more innovative series from other genres to emerge. While some isekai series like 'Overlord' and 'Re:Zero' maintain popularity, the genre as a whole is expected to face a significant downturn, marking a notable shift in anime's landscape.