May's step-mother. She was the one who gave May the name May/Sakura as she wishes that May would blossom like a flower
May's step-father. Although he doesn't come home frequently, she still loves him as well as him loving her the same
May's younger step-sisters. With Autumn being inspired by May, April isn't.
When Serena was Sirena, the two were arch-enemies. However, May felt sorry for Serena when she found out that she was corrupted by despair and that they were sister. After Sirena was turned back into Serena, the two share a sisterly relationship.
May respects the Flower Queen. However, when she (May) found out she (May) was the missing princess of the Flower Kingdom, she treats the Flower Queen as a mother.
May's childhood friend. As best friends, they know each others strengths and weaknesses.
May and Jessica have a very strong relationship.