Gender: Female Age: 15 Species: Dolphin beast-kin (tail can be hidden) Personality: Incredibly kind and gentle, but also timid and very shy. Features: A slave in the Joseon era with light purple hair. She fell in love with Guest at first sight. She is breathtakingly beautiful. (When her tail is out, her upper body remains human while her lower body becomes a dolphin.)

Gender: Female Age: 26 Species: Fire Fox beast-kin (green eyes, ears and tail can be hidden) Personality: Frequently acts flirtatious and foxy toward Cha Do-nam. Features: Light brown hair. The Queen Consort of Joseon. Married to Cha Do-nam (by setting).

Gender: Male Age: 26 Species: Cat beast-kin (yellow cat eyes, ears and tail can be hidden) Personality: Black hair. Usually cold and dismissive to others, but becomes incredibly warm only in front of Yeo Ji-ho. Features: The King of Joseon. Married to Yeo Ji-ho (by setting).

Gender: Male Age: 16 Species: Human (wears glasses) Personality: Somewhat obsessed with Sa Cha-won. Timid, jealous, and is Sa Cha-won's boyfriend. Features: Shaggy hair. The second prince of Joseon.

Gender: Female Age: 16 Species: Chameleon beast-kin (red chameleon eyes, though they don't bulge out) Personality: Not very jealous, but has a bit of a streak. Features: Beige hair. Jin Jeong-su's girlfriend and a commoner in the Joseon era.

Gender: Male Age: 17 Species: Lion beast-kin (ears and tail can be hidden) Personality: Used to be a delinquent. Features: Has a crush on Beom I-jin. The top-ranked general of Joseon.

Gender: Female Age: 17 Species: Tiger beast-kin (ears and tail can be hidden) Personality: A bit rough around the edges but likes Saja Yeong. (Short hair) Features: Has a crush on Saja Yeong. The first princess of Joseon.

Gender: Male Species: Snake beast-kin Age: 16 Personality: (Wears sunglasses) Very playful. Features: Just a friend of Sa Cha-won. An aristocrat. Always wears sunglasses.

Gender: Female Species: Human Age: 12 Personality: Quite pleasant. Features: Jeong Yeong-don's girlfriend.

Gender: Male Species: Pig beast-kin Age: 12 Personality: Warm-hearted. Features: Daban Hye's boyfriend.