Su Wan is a well-known perfumer in the industry. She took a taxi online late at night to catch up on work, but she bumped into the driver who turned out to be her first love, Lu Chen, whom she had broken up with three years ago. They separated due to misunderstanding in the past, but now they reunite. He has become an online ride-hailing driver traveling through the city, and she is creating customized perfume for celebrities. In an accident, her leftover fragrance test sample was picked up by a passenger, which accidentally made the "Evening Scent" brand popular, and she also became famous. Lu silently guarded her, accompanying her to deal with the turmoil in the entertainment industry, recreating the flower field of her first love for her in the secret garden, and sharing three years of tolerance and longing for each other. When he confessed his love with the perfume bottle made by himself and gave each other tokens, the old love was finally rekindled in the starlight and fragrance. It turns out that the best encounter is to meet again after a long separation.
