; : : A lonely boy who dislikes Christmas. He is often teased for his odd name. As he grew up, his parents were never there for him. His view of Christmas changes when he meets Mai. ; : : A student at the Santa Claus Academy that has problems using her magic. She can only conjure up things that start with in the Japanese language. She was sent to San-chan to cheer him up as her mission but eventually falls in love with him in the process. Mai first appears to San-chan as a junior high school student. Later when San-chan starts to believe in Santa Claus, Mai gains enough Christmas powers to change into her grown-up form. In adult form, Mai oddly enough uses the hyper-masculine "Ore" (as opposed to the traditionally feminine "Atashi") when referring to herself, despite the feminine appeal that she gains with her transformation. ; (aka Shirley)
(OVA anime only) : : Mai's best friend and rival. Unlike Mai, she is an
elite in Santa Claus Academy. She says "Gorgeous" whenever she uses her magic, which can make any objects present to her grow to very large proportions. She was sent back to retrieve Mai in order for her to finish up her studies at the academy. ;
(OVA anime only) : : Mai's little sister who came to live with Mai. She has the tendency to tag along with her big sister () wherever she goes. She also slaps anyone that interferes with her spending some time with her . At the end of the OVA, it is revealed that MaiMai snuck away from the Santa Claus Academy and is, in fact, the one that Sharry was supposed to retrieve. ; (aka Miss Noel)
(OVA anime only) : : A teacher from the Santa Claus Academy. She is the one that tells Mai that she has to say good-bye to San-chan because she has to go back home and continue her studies. Although, Mai might have misunderstood her when she told her this. ==Release==