It’s official. You’re not an otaku nerd anymore if you say Isekai but someone with an extensive vocabulary. Don’t let anyone tell you anything else!
Okay, so Fantasy or sci fi with a real world protagonist so to say. Interesting that happens enough to make a sub genre lol
Japanese and Korean media are wayyy beyond saturated with isekai series. I mean just look at this shit: https://isekai.fandom.com/wiki/Isekai_Series
Written by Tappei Nagatsuki and animated by Wit Studio and OP by Calli Moriope. I’m neither a fan of shounen, nor the Suicide Squad IP but even I believe it’s probably going to be good.
isekai itself isnt any magical new subgenre, it just that the number skyrockete past 2010 so they more or les made it a big thing. it itself is related to portal fantasy in a western sense.
examples of western portal fantasies include titles like the chronicles of Narnia, Wizard of Oz, and Harry Potter and such.