Promise of migratory birds(2016)

Fifteen Years to Wait for Migratory Birds is a Chinese drama series following Li Li, a quiet, studious girl who befriends the cynical and handsome Pei Shangxuan in junior high school. Over the next 15 years, she becomes his closest companion and the only person he truly loves. As Shangxuan finally recognizes how deeply she matters to him, their relationship confronts seemingly impossible barriers. The series traces their long, complicated journey from adolescence into adulthood, exploring themes of unrequited devotion, personal growth, and the painful gap between loving someone and being able to be with them. With its focus on time, patience, and the transformative power of steadfast friendship, the drama captures the bittersweet reality of loving from the sidelines.