Holly's grandfather and grandmother are actually not related to her at all. Her grandfather is the Tochikan village elder and they take her in after her father leaves. They help hide her and Suezo during the invasion and destruction of their village by Naga, but they lose their lives in the process.
Holly's grandmother is always depicted as sweet and caring.
|Episode 08: After the Rain||Pink Suezo||Pink Eye||Serves as their housekeeper|