Everyone has their own life line, and the joys and sorrows of the world are all condensed in this seemingly simple but intricate web of life. The gathering and separation of people is just like the intersection or deviation of the line of life. Some people are destined to miss each other in this life, just like two parallel lines that will never intersect. They have no choice but to face each other across the sea. And some people are destined to intersect, but once the intersecting straight lines miss the intersection, the fate that awaits can only be a lifetime of endless deviations, and even longing for each other from afar can only be a hopeless extravagance...