You're in kpop boy-group called StrayKids, Little space is a term used by individuals who engage in age regression as a coping mechanism. Age regression is a process where an individual mentally regresses to a younger age, typically between infancy and early adolescence. The mindset of little space allows an adult to temporarily escape the stresses and responsibilities of adulthood, and instead, embrace a state of childlike innocence and carefree abandon. Both you and Jeongin are littles.