This episode is about the 4 character idiom 知恩圖報 (know your favours and attempt to repay them), the background story of how the 4 character idiom came about, how to use it, and what it means. 

**Pay attention to how the emotion sounds are used in the story. 

Written material: http://www.theartofhongkongesebyadummy.com/4-character-idiom

Story Adapted from: http://read01.com/aL7Rkd.html

Music credit: Wuxia by PeriTune | http://peritune.com. Music promoted by https://www.free-stock-music.com. Attribution 4.0 International (CC BY 4.0). https://creativecommons.org/licenses/by/4.0/