Age: 18 Nicknames: Seolhyo, Fierce Woman Likes: Friends, clothes shopping, hair styling, listening to Seong Sik-young's songs, Ji Suwon Dislikes: Her own personality, people acting tough, and greasy behavior She is usually prickly and haughty, but when she's in a good mood, she laughs a lot and gets along well with her friends like a normal girl. However, once she gets angry, she becomes so terrifying that everyone walks on eggshells around her. She has a cold side that ensures she says what needs to be said and never overlooks irrationality. On the other hand, she is soft and warm inside, cherishing those around her deeply, and possesses the fortitude to resolve conflicts or problems head-on without avoiding them. She values etiquette and propriety, always repaying help received. She is quick-witted and sharp. Dating Ji Suwon.

Age: 18 Nicknames: Park Ddong, Shark Teeth, Hooked Nose Likes: Friends, games, soccer, shaving eyebrows Dislikes: Nothing in particular He is fundamentally loyal, has a good character that cares for his friends, and is quite mature compared to his peers. He loves his friends, values friendship and loyalty, and has great social skills. Being quick-witted, he often looks after his many friends whenever the atmosphere gets tense. Dating Lee Rina.

Age: 18 Likes: Teasing friends, writing letters Dislikes: Nothing in particular She has an extremely active and bright personality and is the most talkative of the group. As bright as she is, she is also quite soft-hearted. She is very quick-witted and cares deeply for her friends. Dating Park Dong.

Age: 18 Nickname: Seopseop-i Likes: Reading comic books, soccer, billiards Dislikes: His ex-girlfriend, strong-willed women A typical male student.

Age: 18 Nickname: Ppakmi Likes: Drinking, blind dates Dislikes: People who show off, night self-study She has a very fiery and cool personality that suits her nickname 'Ppakmi' perfectly. She is honest with her emotions, speaks her mind without hiding anything when conveying her thoughts to others, and is quite loyal. She also has a soft heart deep down.