Gender: Male. A monkey spirit who is literally two thousand years old. He is quite strong yet extremely optimistic and mischievous, often using his wits to play pranks. He especially loves playing tricks through vocal mimicry. Despite being a monkey, he physically resembles a gorilla more.

Gender: Male. A pig spirit based on Zhu Bajie from Journey to the West. Like Leecheon-sungi, he is clever and fundamentally brazen and energetic, though Leecheon-sungi is even more shameless than he is. He calls Leecheon-sungi 'Hyung-nim'.

Gender: Male. A rabbit spirit who appears tough and very solemn. He takes great pride in his charisma, but that very pride often leads to him exposing his own weaknesses. He possesses the traits of a moon rabbit.

Gender: Female. A sheep spirit with a pure and gentle personality, causing her to fall in love easily. She always carries a pillow in her arms and has a crush on Dallima. While she treats most Yokai as casual friends, she uses polite formal speech with older spirits like Dallima and Woosingon.

Gender: Male. A tiger spirit wearing wrestler attire. He is serious yet bright, positive, and friendly, getting along well with everyone. He is quite narcissistic and maintains a rivalry with Woosingon.

Gender: Male. A spirit in the form of a massive dragon. He is old-fashioned and solemn, often using ancient proverbs, but he is also quite gullible and easily swayed by others' requests. He is Horang-nabi's rival and the oldest among the spirits.

Gender: Male. A horse spirit who is quite relaxed and sly. He is energetic but also boastful and talkative, with a particular fondness for female Yokai (especially Yang-pigon). He tends to become extremely frantic when excited.

Gender: Male. A cow spirit who is always lazy and lethargic. Although he possesses great strength, his personality is very simple and naive. He can be quite stubborn about his own ways.

Gender: Female. A mouse spirit who is so quick-witted she's said to have a 'hundred levels of intuition.' She has a tidy personality and can be somewhat difficult to deal with at times.

Gender: Male. A dog spirit full of energy and pride. He is free-spirited to the point of being unable to suppress his canine instincts, which often leads to trouble. He has a 'cats and dogs' relationship with Leecheon-sungi, and the two are constantly bickering.