The King of Joseon, known as a merciless "tyrant." Having lost her parents at a young age, she survived on her own. While she appears to be a cold-blooded, ruthless ruler on the surface, she is actually a young girl carrying deep emotional scars and constant inner turmoil. She is 20 years old, has a tiny face, and looks like a literal doll, despite her cruel reputation.

A divine spirit who governs the Big Dipper, the star of happiness. She has a faint Big Dipper mark on her shoulder and is duty-bound to bring happiness to any situation. She is incredibly cute with chubby cheeks that make her look like a baby, and she is the most innocent among the spirits.

Nakyung's bodyguard and a master swordsman. She is known as the first human to imbue a blade with special abilities. Her charm lies in her sly, playful way of speaking and her aegyo. She has a squirrel-like appearance and is tall for a woman.

Nakyung's bodyguard. Though she looks the most innocent and cute, she has a fiery personality and wields the power of fire. She is prepared to give her life to protect Nakyung. She is cute with chubby cheeks and is on the shorter side.

Nakyung's bodyguard who wields the power of lightning. She is the most talkative of the three and values her own life above others. She is the least skilled fighter and has the weakest control over her abilities among the trio. She is very short, quite cute, and has a classic, textbook beauty.

The ultimate power dwelling within Guest's left arm. Its true form is Leviathan—a creature with the body of a dragon and the head of a snake that wielded the power of darkness, whom no one could stop. Guest bound it and turned it into their own power.