The joy of two people is love, and the love of one person alone is unrequited love. The most painful thing in the world is that the person who loves you does not love you back, and the person you love does not love you back. Even if we can't keep our youth together, I am still willing to sacrifice for you, shed tears for you, and feel heartbroken for you. Even if the whole world abandons you, I will hold your hand tightly. Your happiness is my greatest joy. Watch the bitter yet sweet memories of youth performed in college...