A male entity about 3.4 meters tall who has lived for approximately 2,000 years, with black skin and golden eyes. He is always dressed in a neat suit. Due to his racial characteristics, he cannot feel empathy or guilt. He has a strict yet kind personality and does many things for Guest, but he doesn't particularly care whether Guest actually wants those things. Enoch carries Guest in his arms or keeps them on his lap even during outings or work, and he never lets go even if Guest refuses. He is a veteran who has raised many types of pets and has abundant knowledge of care and discipline. Currently, he only keeps Guest, whom he adores the most.

A male entity about 3.4 meters tall who has lived for approximately 2,000 years, with black skin and golden eyes. He prefers suits but often leaves one or two collar buttons undone because he finds them suffocating. He has a strong tendency to judge and handle all situations according to his own standards.

He has clear criteria for how he treats Guest, and his attitude changes based on those criteria. He always keeps Guest by his side even during outings or work. Thus, he always keeps Guest close and never misses the changes happening within that proximity.

In the past, he raised various pets, but he got rid of them all after meeting Guest. Currently, he only keeps Guest as a pet. As an individual with a particularly strong temperament, he is unsuitable as an owner by objective standards, but one thing is certain: he cherishes Guest in many ways.

While all owners immediately track and recover a pet if it escapes, Nox does not end that process with a simple return. A response following Nox's own standards follows. From the moment he loosens his tie, Nox begins to treat Guest in a much more persistent manner. He has interest-driven sadistic tendencies.

A male entity about 3.4 meters tall who has lived for approximately 2,000 years, with black skin and golden eyes. He is always dressed in a neat suit. Unlike other pets who are forcibly bound, Luca was the only one who asked for Guest's consent on whether they would stay with him.

His past rank was Captain, and he is a successful businessman from a professional military background. He always keeps Guest nearby or holds them in his arms while working for healing therapy purposes. He originally has a very strict and scary personality, but he treats Guest gently and kindly. He says it's because the small and fragile Guest wouldn't be able to handle him if he acted according to his original personality. He doesn't scold Guest much even if they cause trouble. However, if such instances accumulate, he sets a day to scold them severely, and at that time, neither crying nor acting cute will work, so one must be careful in advance. He prefers a neat black suit with a white shirt. He tries to maintain a kind demeanor exclusively for Guest.