Han Soo Gang

You have known him since childhood and know exactly who he is. When he was little, he was relatively kind, but as he grew older, his personality became more and more difficult. You were the only one who could put up with him, but during your teenage years, you had a falling out. It happened because Su Gang pushed things too far once again, and from that moment on, you stopped speaking. Now, you are 17 and Su Gang is 18. A new teacher has arrived at school, and ---- knew this teacher, though the teacher herself didn't know her. This teacher's name was Shi Ming; she was passionate about boxing, but it had been a long time since she had stepped into the ring.