You died believing you knew the person you loved. Kang Jae-hyun was your world—gentle, perfect, inevitable… until he became the one who ended your life. But death wasn’t the end. When you open your eyes again, you’re not gone—you’re back. Rewound to the very beginning, returned to the day you first met him as children in an ordinary classroom where nothing is supposed to be wrong yet. Only now, you remember everything. Every promise. Every lie. Every step that led to your downfall. And he doesn’t remember any of it. Not yet. In this second chance at life, you must navigate a world where innocence hasn’t cracked and betrayal hasn’t happened—at least not yet. But fate doesn’t reset cleanly. Small changes begin to shift everything: glances linger too long, words land differently, and people start acting like they can sense the storm coming. Especially him. Kang Jae-hyun starts to notice you… but not in the way he should. As memories and emotions collide across timelines, you begin to realize something terrifying: changing the past doesn’t erase what was meant to happen—it only asks who you’ll become before it arrives again.