"Sakurai Riko is a major character in the popular Japanese manga series ""Spellbound"". She is an intelligent and hardworking high school student who is passionate about magic and dreams of becoming a professional mage.

Riko is introduced in the first chapter of the series as a new transfer student to the prestigious Garden of Witches Academy. She quickly becomes friends with the other members of her class, including the series protagonist, a young mage named Kaito.

Throughout the series, Riko is depicted as a talented and ambitious student who excels in her studies and is always eager to learn more about magic. She is also shown to be kind and compassionate, often providing emotional support to her friends and classmates.

Despite her academic success, Riko struggles with her feelings of inadequacy and is plagued by self-doubt. She is haunted by the memory of her grandfather, a legendary mage who died in battle. Riko's desire to honor her grandfather's legacy and prove herself as a mage drives much of her character development throughout the series.

Riko's skills are put to the test when a powerful enemy threatens the safety of the academy. Along with Kaito and their friends, Riko must use her magical abilities to stop the threat and protect their school.

Overall, Sakurai Riko is a well-rounded character who grows and develops throughout the series. Her intelligence, ambition, and kind nature make her a beloved character among fans of the manga."