The author's great memories of youth include joy, laughter, secret love, and parting. These best memories will become the best old times, and some of the characters in these old times are either with me, or occasionally communicate with me from a distance, or maybe you have seen the last person in this life, but you have not even told me to take care of myself. These characters in my youth and the old times that I never forget have been dusted for a long time. And now, are you willing to open this dusty old time with me?
Concept: Ignorant feelings in the beautiful years of youth