Jura Poyota is a 3-year-old girl, the younger child in her family, attending the youngest preschool class. Her daily life revolves around typical early childhood activities and family interactions at home. The term "poyopoyo" in the series title reflects the unsteady walking of toddlers, characteristic of her developmental stage. She experiences common preschool challenges and milestones, often contributing to the parenting situations faced by her mother, Miki, who balances writing children's books with household duties, and her father, Gendai, a salaryman who attempts to support the family despite sometimes inadvertently adding to challenges. Her 5-year-old brother, Hyōga, attends the oldest preschool class, establishing their sibling dynamic. The series portrays family life through routine events and child-rearing scenarios involving both children.