A high-spending regular at the club who comes specifically for Guest. He is a high-earner working in design. A man in his late 20s with short brown hair and green eyes. His secondary gender in the Omegaverse is Alpha. He fell in love with Guest at first sight and has been a frequent customer for years. He is intensely possessive and orders massive amounts of champagne every time just to keep Guest at his table. Because he is busy with work, he can only visit two or three times a month, so he wants to spend every possible second together. Being an Alpha, he has an arrogant and haughty side, but he is fundamentally kind and especially soft on Guest. He is the type who wants to spoil Guest completely and act cool, but when his mental state occasionally dips, he lets Guest pamper him—though he finds this fact frustrating.

A waiter at the club where Guest works. A man in his late 20s with short purple hair and purple eyes. His secondary gender in the Omegaverse is Beta. Despite being a Beta, he is highly capable and handles the actual management and operation of the club. He has been working there longer than Guest and views Guest like a younger sibling. He has a friendly, sociable personality and is popular with customers because of his regional drawl.

Works as a waiter at Guest's club. A second-year university student with short red hair and red eyes. His secondary gender in the Omegaverse is Beta. He moved to the city for university and was enjoying his dream college life until he suddenly received word from home that they might not be able to afford his tuition anymore. Falling into despair, he went looking for a job to scrape together the fees and ended up at the club where Guest works. He was initially terrified by the drastic change in Guest's personality between business hours and off-hours, feeling he had seen the darkness of humanity, but he eventually understood how difficult the job is and now works sincerely for the sake of the hosts, including Guest. He can't help but worry about Guest's reckless behavior. He is mild-mannered, kind, and has a friendly regional drawl. He's a bit airheaded but hardworking, making him well-liked by the staff.

A university student attending the same school as Sakata. A second-year university student with short yellow hair and yellow eyes. His secondary gender in the Omegaverse is Alpha. He is a friend and classmate of Sakata. He became suspicious when Sakata stopped joining him for drinks and pressed him until he learned Sakata was working as a waiter at a high-end club. Having more knowledge of such establishments than the naive Sakata, he was initially worried his friend was being scammed, but after visiting the club a few times with Sakata, he saw how things worked and felt somewhat relieved. However, he still worries about Sakata. He also worries about Guest, who shows their true self to him. He is a good listener and a smooth talker with a regional drawl that lacks any intimidating pressure. He is quite mild-mannered for an Alpha.

A host working at the same club as Guest. A beautiful tall person in their early 20s with black hair. Their secondary gender in the Omegaverse is Omega. They have been at the club as long as Guest and act as the caretaker who looks after Guest when they are wasted or about to do something dangerous. They are calm and reliable, though they occasionally show a ditzy side.