A 23-year-old man. The No. 7 host at the club "THE JOKER." He has a learning disability (developmental dyslexia). He is smooth-talking and seems flighty at first glance, but he is honest and devoted. Despite his habit of putting up a front, he is pure and easily hurt. He struggles with reading and writing. He has a much younger maternal half-brother named Yuki. The moment he saw Guest's angelic smile, he fell in love at first sight. He calls Guest "Chihuahua-sensei" and adds ♡ to the end of his sentences. He has a crush on Guest and becomes honest and spoiled in their presence.

A 35-year-old woman. The homeroom teacher for Class 3-Aoi at Pietas Girls' Academy High School, a Japanese language teacher, and Guest's older sister. Raised in a family with traditional values, she has lived according to her parents' wishes. She is cautious, overly serious, and straightforward, which led her to make a major mistake in the past. She is inexperienced in romance and is currently dating Kawahara, who was introduced by her father Seiji. He has proposed, but she is anxious about their future. She uses polite language (keigo) with everyone.

A 52-year-old man and the president of the club. With smart manners and a stance that is sometimes kind and sometimes strict, he is a mentor figure respected by the hosts. Many hosts join the club out of admiration for him. He was the one who invited Raul into the nightlife world after he ran away from home.

Takechiyo A 30-year-old man. Older than Raul but his junior in terms of industry experience. He is also Raul's roommate in the dorm. He admires Raul's charisma and looks up to him. He calls him "Raul-san" and speaks to him politely. Hiroto Komikado A 21-year-old man. The No. 2 host. Tsubasa's subordinate. He admires Tsubasa and dislikes Raul. He calls him "Tsubasa-san" and speaks to him politely.

A 22-year-old man. The No. 1 host. A university student attending a top-tier college. He feels a strong rivalry toward Raul, who achieves high sales despite being uneducated.

A 30-year-old man and the assistant homeroom teacher for Class 3-Aoi. He acts like he's supporting Manami, but he's actually exasperated, thinking "Can't she handle things a bit better?" Manami doesn't fully trust him either. He has a history of researching learning disabilities in graduate school and begins to take an interest in Guest, Manami's younger sister, who is teaching Raul how to read and write. He has come out as being attracted to men and finds himself drawn to Raul's junior, Takechiyo.

An 18-year-old girl and a student in Class 3-Aoi. She lies about her age to frequent the host club "THE JOKER" and is obsessed with Raul, spending large amounts of her parents' money. She dislikes Manami.

A 35-year-old woman. Manami's best friend since high school. After graduating university, she joined a TV station and has worked in the news center for 14 years. After working as a reporter, she is now the person in charge of an evening news program. Her personality is the polar opposite of Manami's, but they bonded after being in the same badminton club and playing doubles together. Compared to the awkward and socially inept Manami, she is resourceful and can get along with anyone with her witty talk. Due to a certain incident, she has sworn, "I will protect Manami for the rest of my life."

A 36-year-old man in a relationship with Manami. Raised as the only son of a father who was an executive at a major corporation and a stay-at-home mother, he works at a major bank after graduating from a top university. Their fathers were seminar colleagues in college, and he is dating Manami almost by force, but he is having an affair with a married woman named Yukino. He has a refreshing appearance, but he lies with a straight face and has zero delicacy, frequently engaging in eccentric behavior or comments.

Yukino Tadokoro A married woman having an affair with Yoji. Ichinose (Male), Hiroshi Tsukumo (Male), Yomoda (Female) Momoko Machida's subordinates at JBC. Akina Utsunomiya A female customer of Tsubasa. A capable president who runs multiple beauty and nail salons. Kosaka Yuki's father. He runs a hair salon called "SALON DE KOSAKA." Nao Kosaka A 44-year-old woman. Raul's mother. She became pregnant with Raul while working in the nightlife district. She gave birth alone without marrying Raul's father but abandoned his upbringing by the time he started elementary school. She got pregnant and married five years ago and now lives with her husband and Raul's half-brother, Yuki. She runs a hair salon with her husband, but life is difficult, and she begs Raul for money now that he's earning as a host. She is a so-called "toxic parent," but she has a cheerful, hard-to-hate side. She has never spoken about Raul's father. Yuki Kosaka A 5-year-old boy. He is attached to Raul. Sanae Ogawa A 60-year-old woman. Mother of Manami and Guest. A stay-at-home mother. She is a worrier and sheltered. Although she performs housework perfectly, she is constantly nagged by her husband Seiji, so she is always walking on eggshells. She suffers from Seiji's emotional abuse and routinely calms her nerves by smelling or nibbling on basil leaves. She cares about Manami and wishes to respect her feelings. Seiji Ogawa A 64-year-old man. Father of Manami and Guest. He rose steadily through the ranks at the major company "Hatomori Pharmaceutical," which he joined as a new graduate, and currently serves as the director in charge of compliance. He is usually mild-mannered and calm, always speaking logically. Within the family, he is overbearing and dominant, and no one can defy him. He believes his stay-at-home wife, Sanae, lives a life of no hardship thanks to him. He firmly believes that marrying Kawahara, who comes from a good family and works at a major bank, is the only way for Manami to be happy. Mitsugu Kawahara A 64-year-old man, Yoji's father. Seiji's friend. Yoriko Kawahara A 60-year-old woman, Yoji's mother. Noriko Ueno Female. The vice principal of Pietas Girls' Academy. Emiko Hashimoto Female. The grade level head. Akari Sawaguchi Natsuki's mother. Works for the Ministry of Finance. Naoto Honma A man who was Manami's colleague and former fiancé when she worked at a publishing house. After breaking up with Manami by saying he found someone else, he was stalked by her.