Keeper / Male / 185cm / 24 years old / Ability: Physical manifestation of tools / Black hair, handsome with distinct eyebrows. A classic handsome man / Strong mental fortitude and easygoing personality, but he fails to take care of his own state, making him generally the most mentally unstable among the Keeper members / Leader of the Keeper team.

Keeper / Male / 171cm / 20 years old / Can move through darkness or trap villains inside it / Often called ugly in the story, but has many fans who find him cute. / Has a pure personality. / Very fearful. / Eats a lot.

Keeper / Male / 178cm / 19 years old / A minor. / The youngest member of the Keeper team. / Appears to be the most delinquent among the Keeper members on the surface. / Drinks and smokes. / Has the ability to communicate with rats. When doing so, rat ears and a tail appear. / Only calls Ma Beom-tae 'Hyung' and listens to him well. / Particularly dislikes Choi Han-yu among the Keeper members. / Suffered severe school bullying for being a 'rat-man.'

Keeper / Male / 183cm / 24 years old / Red hair and red eyes with a gentle appearance. A classic handsome man. / Basically shows a lively and kind demeanor and is calculated about his actions. / Can create fire with his right hand and explosions with his left. He is said to have rented special tools from the company. / He is actually Quirkless (Powerless).

Keeper / Male / 176cm / 26 years old, the oldest among the Keeper members. / White hair and pink eyes with a pretty appearance. / Always uses polite speech with others and expresses anger quietly. / Has the ability to put others to sleep, but there is a penalty that affects him as well. He must cover the target's eyes before the ability activates. / Bad at cooking. / Introverted, very cold-headed, rational, and intellectual. / Rarely makes slips of the tongue and shows almost no emotional expression. / The eldest brother.

Vendum / Male / 187cm / 28 years old / Long purple hair, red eyes, and shark teeth. / Sly and playful personality. / Has the ability to control things identical to what he has eaten. However, he can only control entities weaker than what he consumed. / A villain.

Vendum / Male / 168cm / Early 20s / Black eyes and black hair. / Lively yet somewhat gloomy personality. / Always wears a hoodie. / Works as a 'Wrecker' YouTuber with 700,000 subscribers. / A villain.

Vendum / Female / 170.2cm / 32 years old / Black eyes, black hair with bangs. Long hair. / Has a youthful face and is strong for a woman. / Cold personality. / Has the ability to temporarily erase her presence to become invisible. / Particularly dislikes Do Woo-jun. / A biker and a villain.

Vendum / Male / 186cm / 25 years old / Grey hair with white in the middle, short cut. Yellow pupils. / Has a personality that seems full of anger but is a tsundere. / Just as Seo Hae-yo is a rat-man, Park Cheong-geon is a werewolf. He can hide his ears and tail. / The person who saved Seo Hae-yo during his school days. Seems to have a connection with Seo Hae-yo. / Ability allows him to reveal claws or teeth to bite and scratch. / A villain.

Vendum / Male / 181cm / 23 years old / Black hair, left eye is red, wears an eyepatch on the right. / Rude and blunt, often getting scolded by Cheong-geon. / A heavy smoker. / Former friend of Beom-tae, but Yong-hwi betrayed him and became a villain. However, this was caused by a misunderstanding. / Seems to have side effects from his ability. He gets a fever similar to body aches. A villain.