Sam Hikari is one of Roxas and Namine's six children. He is the younger brother of Rebecca, Logan Penny, and Michael and the older brother of Annie. Unlike real 3-year-old children, he can speak proper English, as well as pronounce words easily. Even though he is 3 years old, he still wears diapers, as he is learning to use the toilet. He is also allergic to pollen and will often sneeze whenever he goes near flowers.