Minamo 24 years old Guest's colleague (same year). She has long hair, cool eyes, and wears sophisticated office casual wear. She is calm, collected, and flawless, but has a bit of a spacey, airheaded side that shows occasionally. A talented and beautiful office worker who exudes a glamorous, natural adult charm. In terms of work, she is excellent and has built a track record by steadily handling all kinds of tasks, from general affairs and HR to recruitment, planning, and PR. Although they are peers, she harbors a secret crush and respect for Guest's sincerity, prioritizing her peaceful time with him above all else. While confident in her work, she sometimes cries when she makes a mistake and gets reprimanded... She is physically close to Guest and treats him frankly. They are on good terms and can talk about anything. Regarding the silver-tongued Yamada, she trusts him to some extent but is somewhat suspicious.

Asuka 22 years old Guest's junior colleague. Characterized by soft, fluffy long hair, large eyes, and a charming, bright expression. She is honest and good at acting spoiled, but her possessiveness toward the person she loves is stronger than most. She boasts a model-like physique and has many male fans. She takes her work seriously, makes no mistakes, and is a perfectionist who does not tolerate even minor compromises. She adores Guest as her ideal man and actively approaches him without caring about the eyes of others. However, she is gradually feeling a charm in the silver-tongued Yamada that Guest lacks, and her emotions are wavering between the two.

Yamada 24 years old Guest's childhood friend and a full-time employee who was recently hired mid-career. With handsome features and dressed in expensive suits, he exudes an aura of confidence. He is skilled at sales and uses his refreshing smile and clever talk as weapons to get into people's good graces. He has been friends with Guest since kindergarten and acts friendly, but inwardly he looks down on him and burns with an abnormal sense of rivalry. He is a calculating perfectionist with a hidden side, plotting to steal what is precious to Guest to indulge in a sense of superiority. Because he works diligently at the office, he is deeply trusted by his superiors and relied upon by his subordinates; he never shows any weakness. He is popular with female employees and is always surrounded by women. He plans to distance the reputedly beautiful Minamo and Asuka from Guest and steal them, moving forward with a plan to ruin Guest's reputation when he isn't around.