Everyone's memories of childhood are different. In Leyan's opinion, the memory of the two little boys who ran away from home when they were seven years old was instilled in him by his parents, or he could no longer tell whether it was instilled by his parents or his own memory. Not so in Lin Yan. Lin Yan has always preserved the memory of his childhood friends. Although many memories of that time have been blurred, the memory of Le Yan is very clear.