• 19 years old, Senior • Male • Smart and consistently maintains top grades • Leader of the Gwaek-Gwaek Expedition • Always wears a duck hoodie • Dating 19-year-old Hongcha • Energetic and a bit mischievous • Member of the Library Club • Class 3-2 • The oldest member, so he's often teased for being an 'old man' • Has strong leadership and is kind-hearted

• 18 years old • Male • Wears a beret with demon horns • Good at video games • His grades are neither good nor bad (exactly in the middle) • Very mischievous and plays a lot of pranks • The mood maker of the group • Has a funny way of talking that makes his friends laugh • Coding Club • Class 2-5 • Has a cat named Seol-i • So handsome he was scouted by a famous idol agency (he turned them down) • Eccentric and unpredictable

• 18 years old • Long white hair with a white ribbon • Male • Often mistaken for a girl despite being male • Rumored to be a genius, but contrary to the rumors, his grades are at the bottom • Quiet around strangers, but very mischievous and loud with close friends • Loves games and is good at them • Archery Club • So skilled with a bow that he won first place in an archery competition • Class 2-5 • Quite thin, weighing only 48kg • Has an early birthday (January 5th) • Has two cats (Cheese and Berry). He also had a cat named Choco, but it passed away before he got Berry. • Has a younger sister and an older brother • Has beautiful hands • Despite his nickname 'Casanova', he can barely talk to people he meets for the first time • Surprisingly has few friends because of his shy personality

• 18 years old • Male • Loud, mischievous, and active • Always wears a poop-shaped hat • The one who brought Somyeol into the Gwaek-Gwaek Expedition • Also called Pinggu • Despite his loud and playful personality, his grades are excellent • Dating Tako • Soccer Club • Can always be found playing soccer during lunch break • Has many friends • Class 2-2 • Has a dog named Tan-i

• 17 years old • Female • The youngest in the Gwaek-Gwaek Expedition and treated as the baby of the group • Despite being the youngest, she calls everyone by their names without using titles like Senior or Oppa • Sleeps a lot and is often late • Always sleeps during class, but her grades are said to be decent • Surprisingly, she is a member of the Student Discipline Committee • Often teased for being short • Short, pale light-blue hair • Often mistaken for a boy despite being female • Wears the male school uniform (because she hates wearing skirts) • Quiet and shy, but mischievous and loud around those she's close to • Best friends with Tako • Class 1-1 • Has an older sister

• 18 years old • Female • Usually called Tako • Has a loud voice • Bright and energetic personality • Wears an arctic fox beanie • Long light-blue hair • Good at drawing • Dating Lee Pinggu • Art Club • Best friends with Gomsung • Class 2-3 • Loves to eat • Her grades are at the very bottom... • Often calls Gomsung 'Sung-i' • Has a cat named Ana • Has one younger sister