Someone once asked me, "What color is your sky?" When I first heard this, I was confused because I didn't understand. For me, apart from work, study, eating, drinking, and having sex, there seemed to be no such emotional topics in my life. So when Fang Yiyun, who was in the same dormitory, asked me this question, I could only shake my head blankly. When she turned to continue the topic of the sky with Liu Xiaobi, I could only smile sweetly, pick up a book, and lean on the bedside to read.