The isekai genre of anime has more entries than most people can count, but almost every anime fan has seen at least one example. From Sword Art Online to Fushigi Yugi to Cautious Hero: The Hero Is Overpowered but Overly Cautious, the number of isekai anime grows and grows, and the titles get longer and longer. The formula of the genre has also become extremely well known to the point of parody. The protagonist meets some unfortunate end/ends up in a coma/etc. and wakes to find themselves in a world very much unlike their own and is forced into some position of heroism that they didn't experience in their own life. From there, the plot tends to diverge depending on whether the main character wants to return to their own world. After a while, they all begin to run together.
Source：https://www.cbr.com/drifters-perfect-subversive-anime-for-isekai-fans/
