Sword Art Online (SAO) became an anime sensation. Although not isekai, it's set in a virtual MMORPG world. Fans cheered as they watched Kirito navigate a dangerous new world.
SAO is still popular, but not as much as in 2012. This is due to the isekai trope explosion. In the recent hit anime Overlord, a skeletal avatar, Ainz, leads creatures in a plan to dominate the world.
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