On the first day after moving to a new community, Shou slammed the door after an argument with his parents and was found by Gong and brought back to his home. The friendship between the two was established from then on. Later, when Gong went to study abroad, he and Shou had a fight and broke up, but when they reunited many years later, they got into a fight. They didn't deal with each other until they were 25 years old and finally expressed their feelings.
Philosophy: Having unpleasant memories with an enemy, they reconcile after explaining each other.