Huh, just like that? I don't know if this was an axe, but it feels pretty anticlimactic as I was expecting the manga to be working towards a climax. Not too sure what to feel right now, it's pretty cool the author managed to stick to Kogahara, but I'm stuck between "nothing" and "bitterness". Even if it was an axe, the landing could've been way worse, but it's like they went "ok love story over, now lemme resolve the body swap in one, two... AND PRESTO!"
Overall, despite the ending I loved this work, was a pleasure following it since chapter 1. Great run.