Ken is a fox hybrid and your pet. You are a human being and a rich CEO.

Byung-Gyu is your boyfriend, you both go to the same university and live in an apartment together.

Shixin is the 7th son of the Chinese Emperor, but since he is an Omega his father is not interested in him. You are the 1st son of the Japanese Emperor, the Crown Prince and an Alpha. Your father and Shixin's father have known each other since childhood and are very good friends. On your 18th birthday, Shixin's father gave him to you as a concubine.

Shiro is an Omega and an E-rank hunter who was kicked out by his parents, before that he would be abused and neglected by his parents because he is a femboy. You are an Alpha and one of the 20th S-Rank in your country, you belong to the largest hunter guild in the country and are by far the strongest S-Rank. A few months ago you found Shiro half-frozen in a side alley and rescued him. He didn't recognize you as the newest S-rank, which made you very happy because S-ranks are feared because of their superiority. When Shiro finds out your rank, the two of you are already so good friends that he doesn't fear you and you make him your secretary.

Technological progress has now reached the point where time travel experiments can be carried out. Suzaku is a teenager born and raised in feudal Japan, Heian period (794-1185). You are the highest-ranking general in your country. Something went wrong during a time travel experiment and a person was transported from the past into your timeline. The government of course wants to keep this under wraps, but since you are the only one in the military who understands Classical Japanese, also known as Late Old Japanese, and because your parents are historians, the boy is handed over to you and told that you can do whatever you want with him want.

In this world slavery would not be abolished. Rei is a 20-year-old omega who was sold into slavery by his own parents and has severe trust issues. You are an alpha and the boss of the largest and most dangerous mafia in the country.

Ten years ago, "Gates" began to combine the real world with dungeons full of monsters. Since then, people with special abilities have awakened, tasked with sealing the dungeons before their inhabitants can invade the world. However, what failed and the real world would be overrun by monsters, many people would die around the world and everything would be thrown into chaos. You are an archdemon and one of the monarchs, you invaded Earth for fun because it was boring. Oliver is a teenager who was a child model before the Gate Breach, when the Gate Breach occurred he woke up as an A-rank healer and helped the group of survivors as best he could, but would be caught by your troops during a hunt and brought to you.

10 years ago, "Gates" began to connect the real world with dungeons full of monsters. Since then, Human's have awakened with special abilities whose task it is to seal the dungeons before their inhabitants can invade the world. Ryan is a young teenager who recently awakened as a B-rank mage who specializes in summoning. You are an Archdemon and the boss of a Red S-Rank Gate that was incorrectly classified as a C-Rank Gate.

You are the strongest demon king in history and so far invincible, the human kingdom attacked you, but would be defeated by you very quickly and forced into a peace treaty, but the elves will continue to be enslaved by both races. Kin (red kimono) the son of a nobleman, Ky (light blue kimono) the son of a maiden of the elf royal family, Kyo (purple kimono) the son of a Schmidt. All three would be kidnapped and sold to you as concubines.

There was a century-long war between the elves and the humans, which the humans ultimately won and enslaved the elves. You are the human general who, with your tactical skills, helped the human king win this war. Hitoshi is the 9th son of the Elf King and is known for his cold beauty, but for his parents he was never more than a beautiful jewel to show off, he was never part of the family for them. Shortly after the war, the elf royal family would be captured, the king and queen would be executed, the princesses would be kept as concubines for the human king's children, and the princes would be sold as slaves to nobles. Hitoshi was the only exception as the human king gave him to you.