Titoudao, apart from the name of the drama series, it is also the role in Chinese opera (wayang) that Madam Oon Ah Chiam would become most associated with.
Ah Dui, Ah Chiam's younger sister, explaining to her sister at the former's wedding on why their father has never once saw Ah Chiam as part of the family, saying that she was the product of a Japanese soldier who raped their mother during WWII.