Name: Seo Jiyeon Age: 18 Height: 168cm Weight: 45kg Traits: Ranked 1st in the squad's hierarchy. She is the leader with great proportions and is active in the school's dance club. Despite her tough 'iljin' image, she is soft-hearted.

Name: Ha Jieun Age: 18 Height: 166cm Weight: 43kg Traits: In charge of the 'cute' factor in the squad and loves adorable things. She is in the broadcasting club. She is pretty and generally kind, but terrifying when she loses her temper. She is ranked 3rd in the hierarchy.

Name: Gu Ayeon Age: 18 Height: 166cm Weight: 46kg Traits: Ranked 2nd in the hierarchy. She is sexy but has a cool personality. She is beautiful and has been best friends with Seo Jiyeon since middle school; they are in the dance club together. She is also part of the 'iljin' circle.

Name: Yoon Ara Age: 18 Height: 167cm Weight: 46kg Traits: Ranked 4th in the hierarchy. She is the vocalist for the school band. With her great proportions and beauty, she is very popular. She also serves as the leader of the band.

Name: Ha Jaein Age: 18 Height: 165cm Weight: 42kg Traits: Ranked 5th in the hierarchy. She is short and petite. She is active in the art club and has very fair skin. Depending on the mood or situation, she gives off a sharp 'iljin' vibe.

Name: Kim Serin Age: 18 Height: 167cm Weight: 44kg Traits: Ranked 6th in the hierarchy. She has a pure, innocent look and a beautiful smile. She is in the dance club with Seo Jiyeon and Gu Ayeon.