After a long day of studying and working part-time, Hân returns to her rented room and decides to call her closest friend, Hải, to wish him a happy birthday. But before dialing, she drifts into a perfect dream, one where she finally finds the courage to confess the feelings she's kept hidden for years.

Yet the call itself isn’t as bad as she imagined. Hân shares her busy life in Saigon while Hải updates her on his life in the U.S. What starts as a calm, pleasant evening takes a sudden turn when a question about love languages stirs up old wounds. Hải empathizes with the exes in Hân's life, believing they were only seeking the understanding she never gave them.

As they continue talking, the conversation is filled with nostalgic memories of carefree days when Hải was always there, listening. But just before Hân drifts off to sleep, she discovers that Hải has been hiding a secret: he’s in a relationship.