When they were sixteen years old, Gu Nian and He Zhiyuan held hands by the river. The two teenagers grew up as lovers, and their lives were poor but hot. It wasn't until a woman intervened that Gu Nian chose to leave. He thought letting go would be a success, but was overturned by a late-night phone call six years later.
Intention: Who keeps the oath for whom, and who loses whose promise