About students in class No.1. It's their last year at high school. About their friendship, love, gossips..

I'll write characters here too, cause there are so many:

Taeyeon (19.years old) (class president of No.1)

Jessica (19.years old)    Sunny (19.years old)

Yuri (19.years old)          Yoona (19.years old)

Sooyoung (19.years old)  Boa (19.years old)

Seohyun (19.yeasr old)   Hyoyeon (19.years old)

Bom (19.years old)         TOP (19.years old)

G Dragon (20.years old) (he repeated a year in high school)

Taeyang (19.years old)     Krystal (19.years old)

Sulli (19. years old)          Luna (19. years old)

Amber (19.years old)        Eunhyuk (19. years old)

Minzy (19. years old)        Victoria (19.years old)

Daesung (19.years old)     Dara (19.years old)

Seungri (19.years old)      Tiffany (19.years old)

Kangta (headteacher, 39.years old)

Anna (30.years old, owner and worker of '3M')