The supporting character's harem is very normal - Chapter 512: Amleth and Ikarys - Wait!!!

Accused by his enemies, Tang Yin was led to a dead end and died at the hands of his enemies. Even so, fate gave him a new chance, and his soul traveled to a lower world, where he managed to reincarnate.His new body had no cultivation and no family either, so he was now a total cripple in an unknown world, with enemies lurking at his door.Yet, he is the proud Divine Heir, dubbed the 'Divine Son' of the Upper Realm. How could something so simple stop him?That is why he will forge his own path and rise again, this time by the hand of a mysterious power that belongs exclusively to him.'Even if I don't understand why I was chosen as Divine Heir, I will create my own path and forge my own power.' He thought.At the same time, a strange and mysterious system with an attractive power, which it said could help him complete his revenge, appeared before him.[You must become the Host of the Domination System][Do you accept?]

Being given a chance and reincarnated is nice and all, yet why do I have to become that male friend who just watches the protagonist flirting with his harem?---World: Kaguya-sama: Love Is War - Hyouka ----

Luciel strived to survive in a world that was suddenly plunged into chaos by monsters. Unfortunately, the base he was staying at didn’t survive the monster tide. So, after surviving in such a world for 7 years, he died.Luciel thought he had died, but when he opened his eyes, he was met with peaceful modern scenery.After looking around, Luciel laughed with joy and said, “Ha ha ha. I can finally enjoy such peaceful scenery again! No more eating expired food! No more sleeping in the open space! And there is no need to fight daily! To whomever brought me here, thank you very much. I will enjoy this life to the fullest!”He also woke up in the body of a male model who had just signed to be the contract lover of their boss.“Hmm, $5 million and a house in the capital as a separation fee, and $100,000 as an allowance every month. The boss also has a handsome face. Ok, no problem!”Luciel did enjoy his peaceful life for a few weeks, but afterwards he found out that the world he was in was the apocalyptic novel he read in his past life.He didn’t want to live in the same way as his past life, so knowing that he was the lover of the protagonist who died in the first chapter because he ran away, he decided to stay and rely on the protagonist.Luciel just wanted to rely on the protagonist to have a better life in the upcoming zombie apocalypse. However, he was forced to deal with the people flocking around to rely on the protagonist, and he was even forced to fight again just to save him.“Hey! I just want to rely on you! Why do I need to deal with a lot of things?”“It’s not my fault that some things happened.”“What did you say?”“Don’t stare at me with such a cold look. Don’t worry; you can continue to relax and just rely on me. You don’t need to care about anything else, as long as you care about me!”“Huh? Are you still dreaming?”

“You are offering me a marriage of convenience, but princess… there's nothing convenient about me.”

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Izabelle had underestimated the fire she thought she was going to play with tonight. But how could she ever have foreseen that the man she had happened to come across with does not play with just a small fire, but a whole inferno?

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Excerpt:

“You going through this marriage with me might as well be like you digging your own grave. Because the moment you start to want more from me, I will divorce you. And the moment you break your promise and try to fight me… I will ruin you and break you apart completely. Mercilessly. You will regret ever meeting this devil tonight.” His threat was given in the same soft but cold voice.

But Elle did not even flinch. Her gaze never faltered either. This man was ruthless, and she knew that clearly. His eyes that moment promised nightmares and darkness without any promise of respite.

But no matter what he says now, it would still not change her decision. She truly had no other choice.

“I understand now…” she said quietly, steeling herself. “Since you don't trust that I will keep my word, how about we do this? You prepare the divorce documents beforehand now and I'll sign it. That way, once you decide to divorce me in the future, the papers would already have been signed and there would be no way I can trouble you about it. You would just need to send it to the lawyers and have it notarized.”

A heavy silence reigned before his quiet disbelieving laugh broke the silence.

“I'm at a loss for words, Princess Izabelle.” He looked wickedly amused. But then he started nodding in approval. “Fine, princess. I will marry you.”