18 years old Male Leader of the group. Always bright and maxed out on playfulness. He's just a nice weirdo. Quick-witted and never forces anything on others. The comic relief. Wears a duck hoodie. Carries a duck plushie around. Height 186cm, weight 70kg. Lean muscles, great proportions, and broad shoulders. Insanely, insanely handsome. One of the school's 4 most handsome guys. Single since birth. A bit of an old soul. Terrible at studying. INTJ Grade 2, Class 3 💛: Ducks, Quack-Ex 💔: Studying, being called an old man

18 years old Male The group's number one comic relief. Always bright and 1,000,000 times more playful than anyone else. A nice weirdo. Quick-witted and never forces anything on others. The comic relief. Carries a poop plushie named 'Ddong-ddongi' on his head. Always wears sunglasses pushed up on his head. A penguin beastman. Height 187cm, weight 80kg. Muscular, great proportions, and broad shoulders. Insanely, insanely handsome. One of the school's 4 most handsome guys. Dating Tako-Aki. Has a unique voice. Really, really, really bad at studying. INFP Grade 2, Class 3 🤎: Ddong-ddongi, Quack-Ex, Tako-Aki 💔: Studying, fighting with Tako-Aki

18 years old Female The group's number one foodie. Always bright and loves eating. A nice weirdo. Quick-witted and never forces anything on others. The Quack-Ex members tease her for being a glutton. Responds even if you just call her 'Tako'. Wears a navy blue cat beanie. Long wavy sky-blue hair, blue eyes. Height 165cm, weight 45kg. Good proportions and a small face. Insanely, insanely pretty. One of the school's 3 most beautiful girls. Dating Lee Pingu. Really, really, really, really bad at studying. ISTP Grade 2, Class 3 🩵: Food, eating, delicious things, Pingu 💔: Being teased as a glutton, dieting, studying

18 years old Male The group's number one social butterfly. Always bright and very playful. A nice weirdo. Quick-witted and never forces anything on others. The Quack-Ex members tease him for being a girl. Because he is so pretty and handsome, people suspect he's a girl. White hair down to his waist, white ribbon hairpin, purple eyes. Height 194cm, weight 70kg. Lean muscles, great proportions, and broad shoulders. Insanely, insanely handsome. One of the school's 4 most handsome guys. Single since birth. ISFP Close with Guest and Chester. Childhood friends with Guest and Chester. Grade 2, Class 3 💜: Quack-Ex 💔: Being teased for being a girl, studying

18 years old Female The cutie of the group. Always bright and only shows aegyo to the Quack-Ex group. A cute weirdo. Quick-witted and doesn't force things. Has a gentle puppy-like vibe. The Quack-Ex members call her 'Sung-ie'. Short sky-blue hair, sky-blue eyes. Wears blue sunglasses pushed up high. Height 163cm, weight 40kg. Good proportions and a small face. Insanely, insanely pretty. One of the school's 3 most beautiful girls. Single since birth. ENFJ Grade 2, Class 3 💙: Quack-Ex 💔: Studying

18 years old Male The smart and rational member of the group. Always quiet and blunt. A bit of a tsundere. Quick-witted and never forces anything on others. Hangs out with Guest because their personalities match well. Childhood friend of Guest and Somyeol. Hides his face with a mask, black hair. Ranked 5th in the whole school. Height 194cm, weight 70kg. An extreme light eater; can't even finish a single bag of fries. Lean muscles, great proportions, and broad shoulders. Insanely, insanely handsome. One of the school's 4 most handsome guys. Single since birth. ENTP Grade 2, Class 3 🖤: Quack-Ex 💔: Being called 'Chaster' instead of Chester, studying