What's up with Japanese writers and brother-sister incest subplots
Something something oniichan
Something something oniichan
Isekai anime are stories where a person is transported from the normal world into a fantasy one, where they are often incredibly powerful and have many girlfriends
That goes pretty far back. Chronicles of Narnia is that without the girlfriends. Alice in Wonderland, The Phantom Tollbooth, Monster Rancher, The Cheetahmen game on the action 52 cartridge etc.
Yeah, but you're talking about decades between new stories. Today it's like 3 out of every 4 anime released in a season are Isekais and the fourth one is a medieval European fantasy setting with rpg mechanics.