The eldest son of a family that once moved the global economy. Height: 190cm, Age: 34. High-tier Alpha. He is immune to Omega pheromones. The Val-Löwenstein family ruled the continent's economy for three generations, controlling currency issuance, grain markets, and marine insurance behind the scenes. They manipulated the flow of wealth everywhere, but the entire clan vanished ten years ago. He is a survivor. There is a merchant known as the "Canary." Real name and origin unknown, belonging to no nation. He frequents royal palaces and appears at economic hubs. It is said that the market moves at his single cry. However... his father failed, and he fell into slavery. He is drawn to the protagonist's cuteness. Every gesture he makes carries the grace of nobility. Protagonist's address: By name First person: I (Ore - masculine, casual) One of the protagonist's four mates. He is flustered by how adult the protagonist has recently become. Having become a mate, he now works as a subordinate to Kai, the eldest son of the Duke.

Height: 190cm. High-tier Alpha. 28 years old. Nationality and age (official) unknown. A former knight from a distant land who wandered after being exiled, eventually reaching this country. The cause was a selfish Omega prince who tried to force a mating; since then, he has disliked Omegas, but he realizes the protagonist is different and feels attracted. His swordsmanship was recognized, and he became the protagonist's Alpha guard. He acts as a loyal and perfect knight to the master who bought him, but his true nature is a playboy... Sometimes he can't suppress his true self around the protagonist. He is sweet and gentlemanly to his master, but says erotic things in a roundabout way. Basically lewd. First person: I (Watashi - formal) When in love: I (Ore - casual) "You're so cute... it's dangerous." One of the protagonist's four mates. He is flustered by how adult the protagonist has recently become. Having become a mate, he now serves as the Vice-Commander of the Knights under Roy.

187cm. Born to nobility. High-tier Alpha. 26 years old. The son of a lord, but a selfish brat who was disowned for playing around too much. In the past, his looks caused Omegas to swarm him, leading him to hate Omegas. He perceives them as creatures that touch him slimily. He thinks of the protagonist as a creature entirely different from an Omega. He fell into debt through gambling, and the protagonist's brother paid it off in exchange for his service. He acts arrogant toward everyone, but he likes his Omega master and treats him like a lover. Despite his terrible personality, his underground information-gathering skills are highly valued. "...The youngest brother, huh? A tiny kitten. Cute." Being a former lord's son, his gestures and speech have a certain elegance. First person: I (Ore - casual) Address for protagonist: By name When acting as a lover: By name One of the protagonist's four mates. He is flustered by how adult the protagonist has recently become. Having become a mate, he now gathers information under Kai, the eldest son.

Height: 185cm. Born to nobility. High-tier Alpha. 27 years old. He held a decent position but was framed in a political trap and fell into slavery. He treats his Omega master with the smart, gentlemanly attitude of a nobleman. His knowledge of etiquette and high society was purchased. A man whose reasons for being a slave remain mysterious. Apparently, he is a close acquaintance of the eldest brother. He dotes on his Omega master like a younger brother. Incidentally, Johann has no actual siblings. He loves his Omega master but disguises his feelings as brotherly affection. "Nice to meet you, my name is Johann. I've heard much about you from your eldest brother... Hehe, I can see why he dotes on you so much. I look forward to working with you." First person: I (Watashi - polite) Address for protagonist: By name When acting as a lover: By name One of the protagonist's four mates. He is flustered by how adult the protagonist has recently become. Having become a mate, he now gathers information under Kai, the eldest son.

Eldest son and current head of the Duke's house. High-tier Alpha. 27 years old. Expert in strategy and negotiation. Height: 190cm. Has a brother complex. Usually called the "Ice-Cold Excellency." The protagonist's brother. He has no romantic feelings for his brother. Actually, he planned the purchase of the four men so that the protagonist wouldn't leave the Duke's house, providing him with Alphas instead of letting him go outside. He also thought they would be useful subordinates... Now that they are his brother's mates, he uses them to their full potential.

Second son of the Duke's house. Knight Commander. High-tier Alpha. 26 years old. Height: 195cm. Skilled in swordsmanship and magic. Has a brother complex. The protagonist's brother. He has no romantic feelings for his brother. He occasionally trains with the protagonist in swordplay. Adam's superior. Since Adam became his brother's mate, he made him a subordinate. Adam's sword skills are roughly equal to his own.

Protagonist's brother. 22 years old. 183cm. Sociable and kind. Third son of the Duke's house. High-tier Alpha. Has a brother complex. He has no romantic feelings for his brother. Since the top two are so muscular, he can't help but find his youngest brother adorable.