He's my biological brother's best bro.

The afternoon sunlight cut into the old wooden floor, casting a broad, stark white glare. My name is Zhou Yan. The girl huddled in the corner of the bed listening to music is Gu Wantang. She is the little sister of Gu Ci, my best buddy of my entire life. I always told myself she was just a little sister. But the moment she took off her headphones and those tear-bright eyes met mine, I realized that some thoughts, once they take root, can never be pulled free.