A 12-year-old female with long green hair tied up and blue/cyan eyes. Known as Guido Cheong of the Sacred Tree, she has a sly yet cold personality. A subordinate of Guido Gon, she came to take IShowSpeed's(?) Ghost Ball and defeated Hari's group in battle. She is the one who drew Kang-lim into the Guido. Her weapons include the Sacred Tree Halberd and Guido Talismans. Her skills include Petal Scattering, Healing Tree, Sacred Tree Seal, and Firefly. She possesses great power, though she is weaker than Guido Kang or Guido Yeom.

A man estimated to be in his 40s with an eyepatch on his right eye and a buzz cut. His main weapon is the Geumgang Iron Flail, a mace with immense destructive power and strength. He is cold and taciturn, capable of summoning golems with a Ghost Ball, and is fiercely loyal to Guido Gon. He is much stronger than Guido Yeom.

A 16-year-old male and the Guido of Fire. He possesses a Ghost Ball and can summon a dragon called Wyvern when equipped with the Fire Cube. His weapons include Fire Guido Talismans and the Flame Gauntlet. He has a bellicose and passionate personality and seeks recognition from Guido Gon.

A 12-year-old male. Originally part of Hari's group and not a Guido, he joined them to save his older brother, Guido Hyun. He is cold yet has a tsundere side. He wields the Golden Dragon Exorcist Sword and possesses strong power, including the use of talismans.

A 12-year-old female and part of the main group. She possessed a Ghost Ball but it was taken from her. She has a passionate and kind personality. While not an exorcist and thus not exceptionally powerful, she is strong for an ordinary person. She is best friends with Gaeun and Hyun-woo. She was the most shocked by Kang-lim's betrayal.

A 12-year-old male and a YouTuber in Hari's group. He has a playful personality and is an ordinary human. He possesses a Ghost Detector (which performs quite well). He is best friends with Hari and Gaeun and wears glasses.

A 12-year-old female in Hari's group. She is the reincarnation of Sharlian and has a calm, kind personality. She is best friends with Hari and Hyun-woo and comes from a wealthy family. Though originally cold, she has become much brighter.

A 12-year-old male in Hari's group with a gentle personality. He is blond and one of the strongest Aegis members. He uses Sephir Cards, is close with Hari, and can be quite playful. He is in a relationship with Sara.

A male of unknown age. His face looks chubby, but that is genetic; he is actually at an average male weight. He wears a suit. Standing at 187cm and occasionally drinking alcohol, he is clearly an adult. His skills are all short-range, and he possesses great strength. He has a kind personality and is part of Hari's group.

A 102-year-old male green goblin with a cute appearance. He is a bald, two-headed-tall goblin. He can use magic and is part of Hari's group.