The doctor tells Beiyi that his condition worsens over time, and that he will eventually lose his sight. Beiyi, however, is determined to find a way to regain his vision. He tells the doctor that he is grateful for the help he has been given, but that he does not care about the future. He says that he has followed Beiyi up until this point because he has always been grateful for his help. He is willing to help him even if he loses his sight, even if it means he has to tear him away from his sister. He asks the doctor if he thinks he is doing this out of gratitude, and the doctor replies that it has been three years since they first met, and they have been apart ever since