S1·E15 Episode 15

YIM and FAI are wrestling with each other when CHUEN and SUM get home. CHUEN tells them to stop at once, saying that they are not children anymore. SUM does not see what the fuss is about. KIM and CHUEN meet FAI and YIM on the street. Seeing that the two youngsters acting sneakily, they follow them to a tenement house. They cannot help worrying when they see the sea of abortion advertisement. YIM discovers them. He explains that he and FAI have only come to look for an unprecedented kung fu master. CHUEN very much doubt there is any unprecedented kung fu master, believing it is just another scam. YIM and FAI disagree, as they have won the master money on the mahjong table. CHUEN decides to go up and unmask the kung fu master.