In the early morning of September 11, 2001, two huge explosions occurred in the busiest area of New York. This major accident known as the "September 11 terrorist attack" has long left deep wounds in the hearts of many New Yorkers and the families of other injured parties. On this day,, who also lost a loved one under the rubble of the World Trade Center hit by a flighthas since lost interest in life. It was also after that day that Charlie was left alone in his lively and warm family. Charlie, who was deeply shocked mentally, couldn't face such a huge pain for a time, let alone how to carry on his own life next. He likes music very much on weekdays. He is accompanied by only cold headphones. He wanders aimlessly in the streets and alleys of the city every day on a small electric skateboard, wasting his time languidly. One night, Charlie, who was walking around on an electric skateboard as usual, was stopped by a man, who called himself Alan Johnsonstepped forward and started talking with Charlie. After a simple exchange with Alan, the confused Charlie realized that the "black boy" in front of him turned out to be a college classmate who had lived with him in a dormitory for several years. Charlie, who didn't want to think about it for a long time, recognized this classmate he hadn't seen for many years. When Alan learned of the source of Charlie's pain, as a doctor, he made up his mind to help his old classmates get out of the haze and return to normal life. Since then, Alan will come to Charlie whenever he has time to accompany him to drink, watch movies, and talk about the mountains, and gradually let him feel the beauty of life. Under the influence of friendship, Charlie gradually gained the confidence to live on, and Alan took advantage of the heat to become a matchmaker for his old classmates, hoping that Charlie could re-form his own family and experience the warmth of love and family affection. However, the painful past attacked Charlie's heart again at this time. After complaining and angering Alan, he fell into immense grief again
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