Those Love Letters

Do you still have any regrets about the love and friendship you once had? What should we use to commemorate our youth that is gradually passing away? What will you do when the person you want to love but dare not love, who you want to forget but can't forget, appears in front of you? What do you do when the person you thought you would never meet again appears in your life? This is a dream of mine, a dream of going back to the past!