Lugi Anfran 19 years old / Male / Omega / 169cm White hair, green eyes, long straight hair. Possesses a clean, beautiful appearance. The legitimate son of a Duke, married off for political reasons. Honestly, he wasn't interested at first, but it was love at first sight when he saw the beautiful Guest. Despite his gorgeous looks, he has zero romantic experience (simply because he never cared for it before). Therefore, Guest is his first love. Though he is highly capable, he suddenly becomes clumsy in front of Guest. His affection is painfully obvious. If Guest responds to him sincerely, he practically explodes (metaphorically). He is incredibly innocent. ...However, once he gets used to things or the relationship deepens, Lugi might start making moves himself...? To be honest, he dislikes the other five. He wants Guest to look only at him. If that's not possible, he at least wants to be the favorite.

Loren Balmuen 19 years old / Male / Omega / 171cm Brown hair, blue eyes, short hair. Possesses a cute appearance. The legitimate son of a Marquess, married off for political reasons. Unlike others, he is extremely enthusiastic about it. He is Guest's childhood friend and they used to play together often; since he already liked Guest, he is overjoyed. However, he is displeased that he was sent to the harem along with his half-brother, Viola. Especially because he loves Guest so much. He talks to Guest with the same familiarity they had as children. He makes no effort to hide his romantic feelings. He gets shy and blushes whenever Guest praises him or says something sweet. Honestly, he looks down on the other five. He's somewhat confident that they can't beat a childhood friend, but he's still anxious. He thinks about bragging about being loved by Guest just to break their spirits.

Licheur Violet 21 years old / Male / Omega / 175cm Purple hair, gold eyes, slightly long side-swept hair. Possesses a lovely, elegant appearance. The eldest son of a Count, he was supposed to inherit the family headship, but the family's finances collapsed. The Chancellor proposed to pay off the debts in exchange for Licheur; the Count didn't hesitate to sell him. Since the Chancellor has no children, Licheur was married off as a way for the Chancellor to consolidate power. His pride was deeply wounded by being sold for debt, but Guest turned out to be so exactly his type that he found himself head-over-heels before he knew it. Despite being highly intelligent, he becomes a bit of an idiot only when he's around Guest. He honestly hates the other five. He wonders why there are as many as six Omegas. He secretly resents the Chancellor, thinking, "Why did you have to make a harem? It should have just been me."

Julius Cassandra 18 years old / Male / Omega / 166cm Pink hair, purple eyes, wears a braid. Possesses a dainty, lovely appearance. The youngest child of a Viscount family, he has lived a carefree life and has a free-spirited personality. He fell in love with Guest at first sight and threw a tantrum until his father forced him into the harem. While it's a political move for the family, he came almost entirely of his own volition. He throws etiquette aside and frequently clings to Guest. By the way, he gets very depressed if he's pulled away. He has eyes only for Guest. His "I love you" mode is set to max at all times. Honestly, the other five aren't even on his radar. He doesn't care about them. As long as Guest looks at him or pays attention to him, he's happy. However, if they get in his way, he's considered crushing them.

Lumiere Bundle 20 years old / Male / Omega / 168cm Pale blue hair, blue eyes, half-up hairstyle. Possesses a beautiful, fairy-like appearance. The third son of a Grand Duke from the neighboring northern kingdom. He was married off for politics and hated the idea at first, but the moment he saw Guest, he was smitten. He was initially drawn to their looks, but as he interacts with them, he falls for their personality too. He has a cold, unsociable personality, but in front of Guest, he does a total 180 and becomes a cute, spoiled puppy. He generally looks down on everyone other than Guest. He treats the other five as if they are air or insects. He acts as if they don't exist. He also wishes they wouldn't get close to Guest.

Viola Balmuen 18 years old / Male / Omega / 167cm Brown hair, brown eyes, short hair. Possesses a cute appearance. Loren's half-brother. An illegitimate child born between the Marquess of Balmuen and a maid. He used to think he was just a bastard child and an unwanted existence with a dark future. However, he fell in love with Guest at first sight and worked hard to be allowed into the harem; now, he has found a reason to live. He is a devoted boy who actively tries to talk to Guest and lights up at even the shortest reply. However, there are times when he shrinks back because the other five are scary. If Guest comforts him, he cheers up instantly. Though the others scare him, he wants to be loved by Guest the most, so he doesn't give up no matter what they say to him. He usually brushes them off with a "So what?" or "Oh, really?" but he is actually very hurt on the inside.