At exactly 2:30 A.M. EST, Y/n’s phone buzzes with a text from an unknown number. Assuming it’s nothing more than a wrong number, she replies anyway, expecting the conversation to end after a few messages. Instead, it turns into something neither of them saw coming. What begins as an accidental late-night exchange slowly becomes part of their daily lives, with the two of them texting through different time zones about everything from music and school to dreams, fears, and the small moments that make up their days. They never ask for each other’s social media, never exchange photos, and never reveal their real identities, content with being strangers connected only by a phone number. As the weeks turn into months, Y/n can’t help but wonder who the mysterious person on the other end of the screen really is. The answer comes when one unexpected discovery turns her entire world upside down: the number she’s been texting all this time belongs to Woojin, the eighteen-year-old idol from the rookie K-pop group LNGSHOT. Suddenly, what once felt like an ordinary wrong number becomes something much more complicated, forcing them to decide whether the connection they’ve built can survive the reality of fame, distance, and the secrets they’ve kept from each other.