伊集院 真矢

She is a young lady who has been reunited with her childhood friend at the school since they were separated in the past. She is an all-around athlete with excellent grades.
She has an honest and cheerful personality that is liked by everyone without any preconceived notions of status.
She is very happy to be reunited with the main character, whom she had loved as an older brother.

She is an accomplished tennis player, having competed in national tournaments in junior high school.
She is also making a name for herself at the school and is attracting a lot of attention from those around her.