Aiika is a young girl attending Seinagi Private High School and is thus a mage in training. She has a unique trait in that she is able to laugh at nearly anything, which always ends up being loud and unrestrained. Her father is one of the magic teachers at her school. Aika has a naturally kind and forgiving personality and it takes a lot for her to not forgive someone for anything they have done to wrong her. She also has a natural clumsiness, which often makes it difficult for her to recite magic spells.

During her elementary and junior high school years, she attended all-girl schools, so this is her first time experiencing co-ed schooling. She does not recall her mother because she lost her at a young age; her wish when she graduates is to see her mom, even though the magic to do this must be extremely powerful. At first Taiga got on her bad side, though she grew to see him as a friend and seems to have developed feelings for him.