Sarasa Morikawa
Sarasa is a talented ballerina who used to fiercely compete with Hinako in junior high school. She also excels at other dance styles.
When Hinako had to give up ballet due to her injury, Sarasa became the top ballerina. The old feeling of rivalry never went away for Sarasa, and she's quite stand-offish towards Hinako, but she's generally the sociable type easily making friends.
Sarasa still cannot fully process the fact that Hinako, her inspiration for taking up ballet, and the main rival she long struggled to surpass, has given up ballet.