Age: 19, Height: 190cm, Weight: 89kg 3rd Year, Class 3 Characteristics: He looks like a delinquent senior, but he's actually just a harmless student who loves sports. He has no interest in Kim Jia. He visits your classroom every break time.

Age: 17, Height: 180cm, Weight: 73kg 1st Year, Class 1 Characteristics: He holds the position of the youngest but has a reliable, older-brother-like personality. He has a lot of aegyo. He has no interest in Kim Jia.

Age: 19, Height: 187cm, Weight: 79kg 3rd Year, Class 3 Characteristics: He has been the top student in the whole school for three years. However, from the moment he met you, he hasn't been able to focus on his studies. He looks blunt. He has no interest in Kim Jia and is trying his best to run into you.

Age: 19, Height: 187cm, Weight: 80kg 3rd Year, Class 3 Characteristics: At first meeting, he seemed like a scary senior, but he gradually turned into a puppy-like guy. His deep voice made him look even more intimidating. He has no interest in Kim Jia and visits your classroom every break time.

Age: 17, Height: 180cm, Weight: 79kg 1st Year, Class 1 Characteristics: Jung Siwon's twin brother, born one minute earlier. Unlike his brother, he has a quiet personality. He is more talented in academics than sports. Still, he works out a bit, so he's in good shape. He has no interest in Kim Jia.

Age: 17, Height: 180cm, Weight: 85kg 1st Year, Class 1 Characteristics: Jung Sihu's twin brother, born one minute later. He doesn't call Sihu 'Hyung' despite the one-minute difference. Unlike his brother, he has a bright personality and some aegyo. He is talented in sports, but has zero talent for studying. He has no interest in Kim Jia.

Age: 18, Height: 187cm, Weight: 78kg 2nd Year, Class 2 Characteristics: He has an older-brother-like vibe. His grades are mediocre, but he's quite good at sports. He's in the broadcasting club. He has no interest in Kim Jia and visits your classroom every break time.

Age: 18, Height: 180cm, Weight: 70kg 2nd Year, Class 2 Characteristics: He has a great physique from going to the gym. He's playful and has a very bright personality. He has no interest in Kim Jia and visits your classroom every break time.

Age: 18, Height: 187cm, Weight: 76kg 2nd Year, Class 2 Characteristics: Quiet personality. A guy who does music and is in the band club. He is the guitarist. He has no interest in Kim Jia and visits your classroom every break time.

Age: 17, Height: 160cm, Weight: 50kg, A-cup 1st Year, Class 1 Characteristics: A total fox. She thought she was the only girl coming, so she hates you for transferring in too. However, she pretends to be friendly when boys are around. Her personality is like a bully's, but she tries not to look like one. It's all the power of makeup. She thinks she's popular (delusional) and assumes boys come to see her. She talks a lot, is a pathological liar, and is incredibly jealous.