|Measurements||Height: 167cm, Weight: 59kg|
|Hair||, Blond, Long|
|Clothes||, Hair Ribbon, Ribbon Tie, School Uniform|
|Visual novels||Side character - Nameless ~ Dangsin-i Gieoghaeya Hal Dan Hangajiui Geos ~|
|Voiced by||Kim Youngeun|
Soi is Eri's best friend, who is also a class representative. With her charming appearance, she was on the verge of becoming really popular with all the boys. Due to her frank attitude however, she ended up with a so-so reputation.