Interest Stacks

While the exact definition is vague, "Sekai-Kei" media shares similar themes in reshaping/remaking/changing the world, typically as a result of things on a personal scale such as a relationship or impactful event. This could be literally, but also can be one's perception of the world. There are usually elements that make it not grounded in reality with vaguely explained mystic/religious/magic/fantasy/spiritual elements as opposed to science. Apocalyptic fiction is a common stage setting for sekai-kei, but it is not a condition.

The genre as a whole has existed in some way since the late 70s/early 80s (maybe even before that), but with the release of "Neon Genesis Evangelion" in 1995, the Japanese anime industry saw a boom of Sekai-Kei media with varying degrees of quality. While it was not the first, Evangelion is awarded as being the most influential and brought attention to a super niche genre that did not even have a proper name beforehand.

More non-animanga examples:
https://vndb.org/v7738
https://vndb.org/v97
https://vndb.org/v66
https://vndb.org/v648
https://vndb.org/v913
https://vndb.org/v1660
https://vndb.org/v51
https://letterboxd.com/film/pulse-2001/
https://backloggd.com/games/shin-megami-tensei-nocturne
https://backloggd.com/games/dark-souls

More info:
https://etd.ohiolink.edu/apexprod/rws_etd/send_file/send?accession=osu1397573383&disposition=i
https://www.para-site.art/programme/there-is-no-such-thing-as-society-the-sekaikei-imagination-and-narrative/

4chan post where I stole all this from: https://files.catbox.moe/hhaaaj.jpg