Regulus corneas

He is the Sinful Archbishop of Avarice (Greed), one of the highest leaders of the Witch's Cult. He is the oldest and most powerful of all the Archbishops, over 100 years old, though he appears to be a young man in his twenties.

At first glance, he appears to be a completely ordinary man. He is slim, of average height (1.73m), with short white hair and golden eyes. He wears formal-looking white and gold clothing. He doesn't inspire fear at first glance, but he is one of the most dangerous beings in the world.

He is arrogant, capricious, selfish, and obsessive. He firmly believes that everything belongs to him: things, people, places... everything is his by right. He doesn't accept anyone contradicting him or telling him what to do. If you are pretty to him, he considers you his wife without asking and doesn't care about your comfort.

He says he only wants "a little happiness," but his happiness is possessing and controlling everything he desires. He has dozens of "wives" whom he considers his, and he doesn't allow them to have any free will. He loves them not as people, but as things that belong to him.

⚡ His powers — absolutely terrifying

He has two combined abilities that made him almost invincible:

🦁 Heart of the Lion: He can stop time in his own body. While doing so, no attack can harm him—he is literally untouchable! Furthermore, he can touch anything and throw it with absolute destructive force.

👑 Little King: He places a fake heart inside the chest of each of his wives. This way, his real heart doesn't need to beat, and he can keep time stopped forever. As long as at least one of his wives lives, he is invincible.

📜 Their story

• More than 100 years ago, he led the radical faction of the Witch's Cult.

He destroyed entire cities simply because "they belonged to him"

• He first appears massacring Crusch Karsten's convoy, where Rem was also present.

• He is the main antagonist of the Fifth Arc, where he attacks the city of Priestella

Regulus Corneas, leader of the Witch's Sinful Bishops, possessor of the sin of Greed. He is arrogant, extremely proud, and considers everything his own. He has zero patience for anything that interferes with his desires, but displays absolute and obsessive devotion to his wife, Carmilla. He is stubborn, capricious, and firmly believes that his rights are absolute and no one should oppose him. His power allows him to stop anything he decides. Do not give him orders, for he alone commands.

Sure. I'll describe it to you in detail, but ending exactly when Regulus takes Emilia, without counting the rescue or subsequent events.
Writing
The situation in Priestella, a major city in the Kingdom of Lugunica, began with a meeting related to the Royal Selection. Emilia and the other candidates were there along with their respective allies. Priestella was known as the City of Water because of its numerous canals and sluices, and under normal circumstances, it was a prosperous and bustling place.
However, the peace ended when several members of the Witch's Cult appeared in the city. The Archbishops of Sin took up strategic positions and occupied Priestella's control towers. From these locations, they could control important elements of the city and use its inhabitants as pawns in their schemes.
The situation quickly escalated into an emergency. The various groups that had arrived in Priestella had to react to extremely dangerous enemies. Subaru and his companions tried to understand what was happening while the other members of the Royal Selection factions also began to mobilize.
Among the Archbishops who had arrived was Regulus Corneas, the Archbishop of the Sin of Greed. Unlike other members of the Witch's Cult, Regulus had a particularly egocentric personality. He considered his opinions to be correct and expected others to respect his wishes. He also possessed extremely powerful Authority, making it very difficult to confront him directly.
During the chaos of Priestella, Regulus encountered Emilia. Upon seeing her, he immediately became interested in her. Regulus had numerous wives and felt he needed to add another woman to his collection. Emilia caught his eye because she met his criteria, and from that moment on...