From the moment they entered college, they were destined to leave a mark on each other's lives, with regrets, joys, and tears. This is fate. When it is there, it connects everyone together. When it is not there, you may not be able to see each other even across the street. Youthful time is like an hourglass. At first you will feel that very little sand is lost. You have a lot of youth to squander, but when you really lose it, you have nothing to do.
The most regrettable thing in life is to be too obsessed with what you shouldn't be obsessed with, but give up on what you cherish the most. All that's left is a lot of regret.
From college to graduation, the love that entangled them was the most difficult to let go of, until they were exhausted and scarred both physically and mentally. When faced with choices, temptations, and desires, where did they end up?