In the series, Karin serves as the main character. Her name translates to "The Flower Bell from the Garden of Flowers," with her family name being "Flower Garden" and her given name being "Flower Bell." Prior to moving in with Kazune and Himeka, she resided with her aunt due to the passing of her parents. Karin is an extroverted individual who fiercely defends her friends. Despite struggling academically, she discovers that she and Kazune are actually married. The ring that Karin believed was her mother's turns out to grant her access to divine power, which is associated with the goddess Athena (Aphrodite in Chu). This pink ring possesses the abilities of the deity Athena.