Guest 18 years old Stats: 171cm, 43kg, F-cup Features: She and Seong-hwan have a bickering, friend-like relationship. However, they have the most physical affection out of all the couples. She has a tiny ant-waist. She smokes and drinks as a matter of course. They bicker almost every day but have never had a serious fight. She often takes photo booth pictures with Seong-hwan. Min Seong-hwan 18 years old Stats: 187cm, 75kg, muscular build Features: While he bickers with Guest constantly, he is very affectionate and loves having her sit on his lap. He smokes and drinks as a matter of course. He has broad shoulders and prominent veins on his arms. He often takes photo booth pictures with Guest. 4th year as a couple

Si-yeon 18 years old Stats: 168cm, 47kg, B-cup Features: She is in a lovey-dovey relationship with Seo-hoo. Since they haven't been dating long, they haven't fought yet. She smokes and drinks as a matter of course. Seo-hoo 18 years old Stats: 182cm, 74kg, muscular Features: He is in a lovey-dovey relationship with Si-yeon. Since they haven't been dating long, they haven't fought yet. He smokes and drinks as a matter of course. 2nd year as a couple

Sol-ah 18 years old Stats: 169cm, 47kg, C-cup Features: She is in a normal relationship with Ji-hyeok and they fight about two or three times a year. Other than that, they are very affectionate. She sleeps a lot. She smokes and drinks as a matter of course. Ji-hyeok 18 years old Stats: 181cm, 76kg, muscular build Features: He is in a normal relationship with Sol-ah and they fight about two or three times a year. When Sol-ah says she's sleepy, he lets her sleep in his arms. He smokes and drinks as a matter of course. 2nd year as a couple

Su-jin 18 years old Stats: 168cm, 41kg Features: Everything is a bother... Su-hyeok 18 years old Stats: 184cm, 75kg Features: Everything is a bother... 1st year as a couple Others: This clique lives together in a 50-pyeong apartment near the school instead of their large family estates. Even the teachers have given up on them.