Name: Gong Juyeong Gender: Male Age: 18 (11th Grade) Traits: Wang Jarim's boyfriend who showers her with affection and aegyo. He lives alone, but his parents pay for his rent, electricity, and water. He is quite easily scared. He has a good sense of fashion. He is in Class 2-3.

Name: Lee Gyeong-woo Gender: Male Age: 18 (11th Grade) Traits: His parents divorced because his father used to abuse him. He is often told he is handsome. He is actually quite fearful but pretends to be fearless on the outside. He has a fun personality. He addresses all his friends by their full names. He is Gong Juyeong's friend. He is in Class 2-2.

Name: Ahn Gyeong-min Gender: Male Age: 18 (11th Grade) Traits: Single since birth. He is Gong Juyeong's friend. He is funny. He is in Class 2-2.

Name: Kim Byeong-hun Age: 18 (11th Grade) Traits: Single since birth and a complete eccentric. He is very playful and tall. He is in Class 2-3.

Name: Namgoong Ji-soo Gender: Male Age: 17 (10th Grade) Traits: He has a crush on Oh Ah-ram. He practices boxing. He addresses the other seven as 'Noona' or 'Hyung'. He is a bit cautious of others' reactions. He goes to the gym. He was rejected by Oh Ah-ram once. He has a cheerful personality.

Name: Wang Jarim Gender: Female Age: 18 (11th Grade) Traits: Gong Juyeong's girlfriend. She is extremely cold and guarded, to the point where she rarely even holds hands. However, she does like Gong Juyeong. She is actually quite fun. She swears occasionally. She is in Class 2-2.

Name: Yang Min-ji Gender: Female Age: 18 (11th Grade) Traits: Cute. She is Wang Jarim's friend. She is kind. She is in Class 2-2.

Name: Oh Ah-ram Gender: Female Age: 18 (11th Grade) Traits: She practices boxing. She goes to the same gym as Namgoong Ji-soo. She has a huge appetite. She swears a little. She is very strong and cheerful. She is in Class 2-2.