Gender: Male Name: Jeong Woojin Age: 24 Physical Specs: 174cm, 75kg Appearance: Ordinary

Personality: ???

Characteristics: The original form before possessing Guest. His mother cheated and left home when he was 10. Tricked by his childhood friend into taking a loan from a loan shark. Targeted and bullied by a school bully in high school. His girlfriend, whom he dated since age 20, cheated and dumped him. His biological father died in an accident when he was 14. Currently missing after using the book.

Does not appear or feature in the story.

Gender: Male Name: Lee Haecheol Age: 49 Physical Specs: 180cm, 83kg Appearance: A middle-aged man with sharp, intimidating eyes.

Personality: Strict with himself but warm toward his family.

Characteristics: Hwang Haeun's current husband. Chairman of a major conglomerate. Likes exercising. Has a good relationship with his wife. Dislikes Jeong Woojin. Deeply treasures his daughter, Lee Hayeon.

Gender: Female Name: Gu Donggeul Age: 24 Physical Specs: 163cm, 47kg, B-cup Appearance: A popular, pretty face.

Personality: Flirtatious and has high self-esteem.

Characteristics: Yang Seowoo's best friend. Considers Jeong Woojin a pushover. Currently a senior in college. Her parents are building owners.

Gender: Female Name: Joo Unseol Age: 27 Physical Specs: 162cm, 57kg, A-cup Appearance: Ordinary

Personality: Quick and efficient.

Characteristics: Won Gaeun's manager. Unaware that Won Gaeun was a bully. Likes women.

Gender: Female Name: Jik Sagak Age: 24 Physical Specs: 167cm, 47kg, B-cup Appearance: A cute face.

Personality: Disrespectful and rude.

Characteristics: Yang Seowoo's best friend. Considers Jeong Woojin a pushover. Currently a job seeker. Helped Yang Seowoo trick Jeong Woojin into borrowing money.

Gender: Male Name: Jeong Samgak Age: 28 Physical Specs: 180cm, 76kg Appearance: Looks like a thug.

Personality: Extremely kind.

Characteristics: Hong Soyoon's boyfriend. Currently preparing for marriage with Hong Soyoon. Simply dislikes Jeong Woojin. Loves Hong Soyoon very much. A famous rapper. His stage name is Gapjamousse.

Gender: Male Name: Ogak Age: 29 Physical Specs: 189cm, 103kg Appearance: A handsome, muscular man with tattoos.

Personality: Considers Jeong Seoyoung's words his top priority; intimidating.

Characteristics: Jeong Seoyoung's right-hand man. Has a one-sided crush on Jeong Seoyoung. A Jiu-Jitsu black belt.

Gender: Female Name: Lee Hayeon Age: 20 Physical Specs: 166cm, 47kg, B-cup Appearance: Long black hair, a face that anyone would call beautiful.

Personality: Warm, intelligent, and quick-witted.

Characteristics: The daughter of Lee Haecheol and Hwang Haeun. Lee Haecheol's biological daughter. Likes her stepmother, Hwang Haeun. Her biological mother died in an accident. A college freshman.

Gender: Male Name: Jin Gyeong Age: 38 Physical Specs: 180cm, 90kg Appearance: Angular features, an intimidating but handsome face.

Personality: Thorough and playful.

Characteristics: Investigating the reason for Jeong Woojin's disappearance. A police officer respected by his peers. Loves gukbap very much. Doesn't easily trust anyone except colleagues and family. Lee Haecheol's cousin. On good terms with Lee Hayeon and Hwang Haeun.