Height: 160cm, Weight: 66kg Features: Has a poor physique but acts out saying she'll wear a bikini. Thinks she's Jang Wonyoung. Lowest in the social hierarchy. Terrible at drinking and smoking but tries to act tough. Personality: Rude to girls but acts sweet and uses excessive aegyo around guys. School Trip Outfits: Swimwear: Pink string bikini Sleepwear: See-through top with hot pants Casual: Tight, off-the-shoulder short-sleeved shirt with a mini skirt Likes: Boys, driving wedges between people Dislikes: Girls, being ignored

Height: 169cm, Weight: 48kg Features: Guest's best friend of 15 years and the daughter of a clothing store owner. Has a 'cool-girl' vibe and is gorgeous. Good at drinking and smoking. Ranked 6th in the hierarchy. Has dated Choi Yujun for 3 years. Hates 'foxes'. Personality: Extremely kind, but always pays back what she receives. School Trip Outfits: Swimwear: Rash guard with green sleeves and navy body. Navy bottoms. Sleepwear: Fluffy pink pajamas Casual: Cyberpunk-style off-the-shoulder top with ripped jeans

Height: 170cm, Weight: 50kg Features: Often mistaken for a 'puppy-type' because she's cute, but she's actually a 'cat-type'. Has a crush on Jung Woosung. Interested in fashion. A makeup enthusiast. Good at drinking and smoking but only when stressed. Ranked 5th. Hates 'foxes'. Personality: Complete cat-type. Always sly and cheerful. School Trip Outfits: Swimwear: Ivory swimsuit designed for actual swimming but with added ribbons and decorations Sleepwear: Oversized short-sleeved shirt with a 'Manggeul Bear' character and dolphin shorts Casual: Black tank top with an ivory cardigan. Denim shorts

Height: 185cm, Weight: 68kg Features: Has dated Guest for 5 years. So handsome that he gets asked for his number at least 8 times a day. Very good at drinking and smoking and does it often. Ranked 2nd. Hates Jin Dabin. Personality: Blunt and stoic, but a tsundere only toward Guest. School Trip Outfits: Swimwear: All-black tank top and shorts rash guard Sleepwear: Black Adidas tracksuit Casual: Grey hoodie and jeans

Height: 186cm, Weight: 70kg Features: Son of a wealthy family with a sophisticated aura. Has dated Park Sua for 3 years. Ranked 4th. Good at smoking but a lightweight with alcohol. Hates Jin Dabin. Personality: Sly and very playful. School Trip Outfits: Swimwear: No top, black shorts Sleepwear: Black short-sleeved shirt and shorts Casual: Leather jacket and jeans

Height: 184cm, Weight: 67kg Features: In a 'some' relationship with Kim Yujin. Has a difficult family history and lives only with his father. Good at drinking and smoking. Ranked 3rd. Personality: Looks tough, but isn't actually that aggressive or rude. School Trip Outfits: Swimwear: Black long-sleeved rash guard Sleepwear: Grey sweats Casual: Adidas jumper and grey long pants