C46 The Sus Came to Visit
Su Luoluo's father was the boss of the Su's, Su Guotong. As for the Madame Su Chung Cheng mentioned, she was Su Sisi's mother, Xu Meihui, whom Su Guotong married after her mother passed away.
Su Luoluo had never called Xu Meihui mother before, so Chung Cheng only used Madam Su as a substitute.
Su Luoluo was not close to Xu Meihui, and she was also rather distant from Su Guotong