The word is Isekai!

[Bluegazer]

Well, the idea of this thread is to chat about the genre/subgenre in manga and anime.

What is Isekai?

Isekai - Wikipedia

en.wikipedia.org

Isekai (Japanese: 異世界, transl. "different world" or "otherworld") is a Japanese genre of light novels, manga, anime and video games that revolve around a person who is transported to and has to survive in another world, such as a fantasy world, virtual world or parallel universe. This plot device allows the audience to learn about the new world at the same pace as the protagonist. Isekai works can also often fall under the fantasy, science fiction, portal fantasy or accidental travel genres.

Isekai somehow reflects the high strangeness and fortean events in our world. Isekai has a reflection in our reality when, for example, the stories of citizens of other countries that do not exist in our world, but somehow end up transported to ours or vice versa, appear. Terrible creatures like the Beast of Gévaudan, (windows fallers). The transfer to other densities or the very phenomenon of abduction.

 

[Bluegazer]

Well, following in the thread, this is one of the wikipedia excerpts:

The concept of has origins in ancient Japanese literature, particularly the story of a fisherman Urashima Tarō, who saves a turtle and is brought to a wondrous undersea kingdom. After spending what he believed to be four to five days there, Urashima returns to his home village only to find himself 300 years in the future.[8] The folk tale was adapted into one of the earliest anime films, Seitaro Kitayama's Urashima Tarō, in 1918.[9] Other precursors to isekai include portal fantasy stories from English literature, notably the novels Alice's Adventures in Wonderland (1865), A Connecticut Yankee in King Arthur's Court (1889),*The Wonderful Wizard of Oz (1900), Peter Pan (1904), The Chronicles of Narnia (1950), and The Phantom Tollbooth (1961).[8]

*We already know who inspired the story