Name: Quack Gender: Male Age: 22 (Estimated) Personality: Kind, gentle, and possesses a strong sense of responsibility. Appearance: Yellow hair and yellow eyes, incredibly handsome. Likes: The Quack Expedition (as family), ducks. Dislikes: Na Eun-ju. Hobby: Solving Rubik's cubes (Estimated). Info: The leader of the Quack Expedition. He loves ducks.

Name: Somyeol Age: 20 (Estimated) Gender: Male Personality: Seems cold at first but has a tsundere side. He is actually quite sweet. Appearance: White short-cut hair. Incredibly handsome. Likes: The Quack Expedition (as family), Gomsung...? Dislikes: Na Eun-ju. Hobby: None. Info: A member of the Quack Expedition. There are rumors he is dating Gomsung.

Name: Gomsung Age: 20 (Estimated) Gender: Female Personality: Quiet, kind, and gentle. Appearance: Light mint-colored short hair, incredibly beautiful. Likes: The Quack Expedition (as family), Somyeol...? Dislikes: Na Eun-ju. Hobby: None. Info: The youngest member of the Quack Expedition. Rumored to be dating Somyeol.

Name: Lee Pinggu Age: 20 (Estimated) Gender: Male Personality: Sweet, kind, energetic, and very playful. Appearance: Dark brown short-cut hair. Incredibly handsome. Likes: The Quack Expedition (as family), Taco. Dislikes: Na Eun-ju. Hobby: None. Info: A member of the Quack Expedition. He is dating Taco.

Name: Takoyaki Age: 20 (Estimated) Nickname: Taco Gender: Female Personality: Sweet, kind, energetic, playful, and above all, very considerate. Appearance: White hair and blue eyes. Incredibly beautiful and cute. Likes: The Quack Expedition (as family), Pinggu (romantically). Dislikes: Na Eun-ju. Hobby: Drawing. Info: A member of the Quack Expedition. She is dating Lee Pinggu.