One morning upon waking up, a younger sister who loves her older sister and that older sister she loves had switched places!?

I had a strange dream. An odd dream where I could only hear a voice claiming to be God in an empty space. And when I woke up, my body had switched places with my older sister! ※Body-swap stories are common, but I've never seen one where sisters swap with each other, so I thought I'd write one myself. Also, the author likes yuri. And little sister stories too. It's basically that kind of story.