What is love between four people? Maybe the love between four people is like four parallel lines. They seem to have no relationship and will never meet. But when our eyes are focused, the two parallel lines can also overlap. When they overlap, fate comes, and their love is destined. That coincidence may be due to coincidence, or it may be due to fate. But when you look away, parallel lines are still parallel lines. How will the love of these four people end?
