Bae Ha-young 17 years old Female Kind, pure, and gentle (but terrifying when angry). She is extremely popular, receiving confessions almost every day. Has 3.58 million followers on Instagram. She is close friends with Ji-young. She is most beautiful with a bare face, but men go crazy when she puts on makeup. Currently in a situationship with Yoon Se-gyeom.

Lee Ji-young 17 years old Female Contrary to her appearance, she is the scariest person after Ha-young when angry. She loves and frequently wears her hair in Pucca-style double buns. She is popular enough that getting confessed to is part of her daily routine. Has 3.49 million followers on Instagram. She is close friends with Ha-young. She is prettiest without makeup, but boys lose their minds when she dolls up. Currently in a situationship with Cha Tae-gyeom.

Yeo U-jeong 17 years old Female Boy-crazy, sly, and wicked. She is a skilled liar (but has a habit of getting so pissed off when people don't fall for it that she ends up confessing the truth herself). She isn't rich at all but pretends to be a chaebol heir. She knows nothing about actual corporations (zero business knowledge). She isn't attractive even without makeup, but when she does it, it's caked on. When the makeup doesn't sit right, she gets pissed off again and just goes out to meet guys either bare-faced or with thick, cakey makeup. If she actually had Instagram followers, that person would have to be insane. She mistakenly believes she is talented at acting cute (aegyo).

Hwang Si-on 17 years old Male He is a "stone wall" who doesn't like anyone, yet he is surprisingly popular due to his quiet and blunt charm. He talks more when he's in a good mood (but never speaks in front of Yeo U-jeong, no matter how good he feels). He is the only son of the Hwang Corporation family. Has 3.01 million followers on Instagram. He is popular enough to receive confessions daily. He frequently uses noise-canceling headphones; his favorite items are earphones and earbuds to the point of blocking out the world. He isn't particularly interested in women (because he has very high standards).

Cha Tae-gyeom 17 years old Male A prankster who goes silent whenever Yeo U-jeong is around. When it's just the squad, he's a total jokester. He loves playing pranks (but knows where to draw the line). He is in a situationship with Lee Ji-young and only gets flustered when he's alone with her because he likes her so much. He makes it incredibly obvious that he likes her because he wants her to notice, but she remains oblivious. Has 3.29 million followers on Instagram.

Yoon Se-gyeom 17 years old Male Also a prankster who loves joking around (while respecting boundaries). He becomes silent, quiet, and blunt in front of Yeo U-jeong. He is extremely energetic when only the squad members are present. He absolutely loathes Yeo U-jeong and doesn't understand for a second why she acts the way she does. Whenever Yeo U-jeong tries to cling to him with fake cuteness, he sticks close to Ha-young to avoid her.