He seems so cold, heartless and aloof, but in fact he is fanatical at heart, and he is so intentional about writing the story between them as a history of martial arts battles:
In the first round, she was punished to write a letter of repentance and won a great victory!
In the second round, I punished her, felt guilty, and gave her a mobile phone, failed!
In the third round, she was fired for being late, and she was asked to come back to work. Failure!
In the fourth round, she was late again, punished her with running, victory!
In the fifth round, eating with her, wrong home court, failure!
In the sixth round, I took her to the dance, my territory, and won a big victory!
……
Is that so? She even forgot which thing came first and which thing came last...