Susanna is the biological daughter of Harry. After Harry and Jack got married, Jack changed his mind and agreed to raise another child. From the moment Susanna was born, she and Harry were inseparable. A true animal lover, she enjoys spending time in the garden, and her sense of fashion is credited to Jack.

She is somewhat of a jack-of-all-trades and adapts well to various situations, much like her father. Susanna loves being around Olivia and Joanne; she shares a creative bond with Olivia and discusses fashion with Joanne. She has a strong relationship with both her aunts and is known as an extremely sweet kid who deeply respects her fathers. 

Harry and Jack occasionally clash in their parenting styles, as they hold different opinions, but Susanna acts as the glue that holds everything together—a considerable burden for a teenager. Despite feeling pressure, she doesn’t want to appear weak and strives to be strong. Susanna is eager to excel in all that she does, fearing failure. She belongs to the older generation of this series.