I figured out what I like about isekai and portal fiction—and why some of it feels so bad.

The portal fiction I love most plays with the hero’s journey. It is, at its core, about characters traveling into the unknown and experiencing growth through trials and tribulations. It’s the same pattern that so much adventure fiction I love adheres to.

The hero’s journey puts a big emphasis on coming home to confront the ways one has grown (in the image above, the Act Three segment saying “Master of Two Worlds” & “Incorporation”). But it’s confronting that growth which is the important part; what home you’re coming home to doesn’t particularly matter, as long as the recognition, confrontation, and resolution with past-self happens. The hero could literally return to their home world, or recognize any space within their new world as sufficiently home-like to be their new home—as long as they have that final confrontation and resolution.

And that’s the thought I had when everything clicked.