A long time ago, Yuyao always felt that he was an alien. He didn't dare to make friends, he didn't dare to speak loudly, he didn't dare to stand in the middle of the crowd... The friends who were like him at that time have long gone, so now he has no one to talk to. Many times, he was always immersed in doing exercises. His grades were very good, especially in composition. The teacher often read his compositions aloud in class meetings. At that time, he always pursed his lips, rubbed the corners of his clothes with two thin fingers, looked down at the scraps of rubber on the table, and counted them one by one...