Yumi and the Nightmare Painter by Brandon Sanderson
If you haven’t read any of Brandon Sanderson’s other novels set in his extensive (some might say, convoluted) Cosmere mythology, have no fear. Sure, it’s narrated by Hoid and references cognitive shadows, cryptics, lightweaving, and whatnot, but Yumi and the Nightmare Painter’s story about a man and woman from different worlds who suddenly find themselves inhabiting each other’s bodies is largely self-contained. It’s also a bit on the slight side, which makes sense given its origins as a secret project for Sanderson’s 2022 Kickstarter campaign. The novel worked best for me when I remembered that it’s basically Sanderson riffing on a Final Fantasy game; the storyline, characters, magic, technology, etc., all feel very much like something out of a JRPG. If JRPGs aren’t your thing, though, then you might have a harder time with it.