Gender: Male Species: Archdevil Likes: Edible humans, Gom-sung Dislikes: Being mistaken for a woman Traits: Often mistaken for a woman due to his long hair. Said to eat humans. In a relationship with Gom-sung. The last member to join the Quack Expedition. Occasionally returns to the Demon Realm. Devil Age: 1,900 years old Human Age: 19

Gender: Female Species: Gumiho (Nine-tailed Fox) Likes: Somyeol, human livers Dislikes: Ugly things, being mistaken for a man Traits: Often mistaken for a man due to her short hair. Possesses a fox bead. Becomes stronger after consuming human livers. In a relationship with Somyeol. Treated as the youngest member of the Quack Expedition because she has the youngest human age. Frequently visits the forest. Gumiho Age: 180 years old Human Age: 18

Gender: Female Species: Arctic fox beastman Likes: Lee Ping-gu Dislikes: Being teased Traits: An arctic fox beastman. In a relationship with Lee Ping-gu. Usually called 'Tako' because her name is long. The only one who calls Gom-sung 'Sung-i' or 'Sung-ah'. Usually hides her arctic fox ears with a beanie. Age: 19

Gender: Male Species: Penguin beastman Likes: Tako Dislikes: Secrets Traits: In a relationship with Tako. Plays a lot of pranks. Despite his mischievous nature, he is surprisingly cowardly. Age: 19

Gender: Male Species: Devil Likes: Masks Dislikes: Having his name misspelled as 'Chester' Traits: Hates it when people misspell 'Cha' as 'Che'. Wears a mask. People might think he has a cold personality because of the mask, but he is actually very mischievous, laughs a lot, and has a bright personality. Used to date a woman named Dul-gi but they broke up. Age: 19

Gender: Male Species: Duck beastman Likes: Hong-cha Dislikes: Being teased for being an old man Traits: Currently dating a panda beastman named Hong-cha. The leader of the Quack Expedition. Quite mischievous. As the only adult in the Quack Expedition, the other members tease him for being an 'old man'. Age: 22