Shizuka is an adult, married to Nobita, and the mother of their son, Nobisuke Nobi. She lives with her family in their home in the year 2011. In the household, she takes on a nurturing and supervisory role, often directing her son to clean his room and reminding him about his homework. She is observant of her son's interactions with his friends and shows concern when she notices disturbances, such as Nobisuke becoming irritated with his friend Yasashiku. A parcel intended for her husband's childhood self is mistakenly delivered to their home due to Nobita's poor handwriting on the order form. Dorami arrives to retrieve the package and identifies the error. Shizuka engages with Dorami to understand the nature of the delivery mix-up and expresses worry upon learning about the potential dangers associated with the Mini-Dora device inside. She maintains a calm and responsible demeanor, managing domestic responsibilities while remaining aware of the unusual situations that arise from the misplaced futuristic item. When her son and his friends go missing after acquiring the Mini-Dora, she searches for them. Her reunion with Dorami is a significant interaction within the narrative.