The supporting character's harem is very normal - Chapter 505: Call me Catheryne

Jerry traversed across worlds and arrived in a Beast Summoning era. In this world, everyone could summon their own pets. Darkness was looming, and the world was in turmoil. Relying on the power of their summons, many shrines plundered the resources at every corner of the world like tyrants. But when everyone else was summoning adorable pets that could help them in battle, Jerry discovered that his summoned pets were a little different. Other people's pets are all kinds of beasts, but Jerry summoned gods from Greek mythology! King of the Gods, Zeus, “Master! I, Zeus, is at your command!” Athena, “I will fulfil all your requests, master!” Poseidon, “I will conquer this sea in the name of the master!” In constant summons, step after step, Jerry became the supreme ruler of this world!

Draven is a magic professor in a fantasy world. He is also an earl, notorious for his evil deeds and mistakes since youth. His downfall is due to a curse that hinders his intellectual potential and his talents. Eventually, he becomes a villain, losing everything he holds dear: his siblings, fiancée, house, domain, and more. After a miserable death, he reincarnates in the modern world as Dravis Granger.In his new life, he grows up to be a highly intellectual individual oblivious towards his previous life, becoming a young professor in mechanical engineering and a researcher. However, he harbors a strange obsession with creating a game, fueled by vivid imaginings of another world. This obsession leads him to develop a game that mirrors his previous life. Upon completing his virtual reality world, he regains his past memories. Overwhelmed by intense emotions—rage, sadness, and the realization of his past ugliness—he suffers a fatal heart attack.In his final moments, he hears a voice, seemingly from the world itself, offering him a chance to return to his original fantasy world. However, he would only retain the memories of his modern life, not those of his first life’s mistakes. He agrees and is reincarnated once more, this time with the knowledge of a modern mechanical engineering professor.But one thing about the Dravis Granger, he's not just a mechanical engineer professor. Not just a straight, killer genius professor. He has his ideals, and the world is too full of villains for his great idealism. So he strived, with his great mind, he became a mastermind. But not as a villain, but as a person who has lost hope in police and justice, and decided to help the people by his own hand. Collecting victims and invited those handpicked talents to his side, making several insane stunts, assassinating, trapping, and eradicating the scums from the world.But now in this fantasy world, he has to survive from multiple factions trying to kill him, protect his domain, protect his siblings, protect his fiance, and the most important thing.Protect the world.But he hadn't lost the Dravis from the modern world.As a professor at the morning, an earl at the afternoon, and a dark knight at the night._____________________________“You've hurt my student.” Draven stands still, no mana seems to emit from him, but just a single frown. A frown that is enough to make the room's heavy. “As a teacher, you think I would leave you unpunished?”“You seem to think that I care about your position, Prince Hermit. But believe me,” Draven took a slow step. “Not even your father could protect you from me.”

On a certain day, a certain thought came to Japan’s Sun Goddess. ——Aren’t there too many Japanese people being abducted to other worlds? It’s true that the large majority of Japanese are diligent and docile and soft-hearted, which makes them pretty much the best people to ask for favors. “But recently it’s just gotten way too out of hand…… Oh, I’ve got it! Whenever a Japanese person is summoned, I just have to summon an otherworlder!” And now, every time a Japanese person is summoned, princesses and elves and beastmen and whatnot are reverse-summoned. Under the acknowledgement of the government, they begin living in Japan. Today, too, Japan is at peace. And so begins this laidback isekai cultural exchange story♪

Luke is a half-beast who grew up in the twisty streets of a large city called Oukiwa. Abandoned by his parents as a child, he soon had to learn the arts of thievery to survive.

Even on the fringes of a super-powered society, he has followed a single rule all his life: never get involved with the Adventurers.

However, this rule is broken when his gang begins to hatch a plan to rob the most powerful family in town.

And so begins the chronicles of Luke Lange, a thief with no ancestors who in the future becomes one of the strongest men in history, with powers that are rivaling even the gods.