TAK and MING came to Hong Kong with their parents from Mainland China. Their father was a Principal and their mother was a teacher. However their academic qualifications are not recognised in Hong Kong, they have to work as janitors. TAK has to do two jobs for the family. Their only hope is MING who is a Form 5 student.

In the school, MING is discriminated by his schoolmates. As he has been trounced, TAK wants to revenge but he mistakenly beats up YAN. YAN has a chance to contact TAK and MING. They are advised to improve their communication with the others by joining the others' activities.

However TAK is dismissed without a proper excuse. In despair, he meets his former friend KWONG. KWONG seems to be having a good life. Being influenced by KWONG, TAK decides to join KWONG to sell drugs in exchange for a better life.