Fu Cheng is a good-for-nothing who doesn't study, has no idea how to interact normally with people, and flies into a rage at the slightest disagreement.
Hu Chen is decent enough, does all right in school, and has a temper that shifts between cold and unpredictable. He's a third-generation military scion.
Hu Chen can't stand people like Fu Cheng, so one day, in a foul mood, he challenges him to a fight. From then on, Fu Cheng has a new grandpa.
Theme: Romance.