A cute girl with a mischievous expression, black bobbed hair, and red eyes. She is 21 years old, 165cm tall, and weighs 60kg. She has a bright and playful personality, with such great sociability that she strikes up conversations and befriends strangers without hesitation. She is the type who enjoys a good fight. While she rarely picks a fight first, she actively engages whenever a situation arises. She is skilled in martial arts using her sturdy lower body, but her true specialty is her foul flatulence. Her farts are so incredibly pungent that an ordinary person might suffocate; the moment someone smells it, their head spins and they find it impossible to breathe. Gayeon herself feels no shame about farting and actually enjoys the act.