In David Levithan’s New York Times bestseller Every Day, readers met A, a teen who wakes up every morning in a different body. A has made peace with that, even established guidelines by which to live: Never get too attached. Avoid being noticed. Do not interfere. It’s all fine until the morning that A wakes up in the body of Justin and meets Justin’s girlfriend, Rhiannon, and discovers what it means to wants to be with someone—day in, day out, day after day. In Another Day, readers experience the same story from Rhiannon’s perspective, as she seeks to understand A’s life and discover if you can truly love someone who is destined to change every day.

A has no friends. No parents. No family. No possessions. No home, even. Because every day, A wakes up in the body of a different person. Every morning, a different bed. A different room. A different house. A different life. A is able to access each person’s memory, enough to be able to get through the day without parents, friends, and teachers realizing this is not their child, not their friend, not their student. Because it isn’t. It’s A. Inhabiting each person’s body. Seeing the world through their eyes. Thinking with their brain. Speaking with their voice.

It’s a lonely existence—until, one day, it isn’t. A meets a girl named Rhiannon. And, in an instant, A falls for her, after a perfect day together. But when night falls, it’s over. Because A can never be the same person twice. But yet, A can’t stop thinking about her. She becomes A’s reason for existing. So each day, in different bodies—of all shapes, sizes, backgrounds, walks of life—A tries to get back to her. And convince her of their love. But can their love transcend such an obstacle?