Yun-chao Yeh

Pi Shao Ting (also 四毛) is the son of a director. He is a student in Hong Kong High School. He falls in love with principal's granddaughter Anne, which makes her boyfriend Tie Ying angry. He often bullies Pi Shao Ting. Thus, Pi Shao Ting determines to date Anne in order to provoke him. However, Tie Ying has the right to punish every student. Later, Pi Shao Ting's father is required to travel to the Mainland with his wife and children (including Pi Shao Ting) due to work commitments (Wikipedia)