MTL - Iron Armored City - Chapter 270 upgrade gem

King Grey has unrivaled strength, wealth, and prestige in a world governed by martial ability. However, solitude lingers closely behind those with great power. Beneath the glamorous exterior of a powerful king lurks the shell of man, devoid of purpose and will. 

Reincarnated into a new world filled with magic and monsters, the king has a second chance to relive his life. Correcting the mistakes of his past will not be his only challenge, however. Underneath the peace and prosperity of the new world is an undercurrent threatening to destroy everything he has worked for, questioning his role and reason for being born again. 

Kuramoto Daisuke, a freshman in High School was suddenly exposed to someone vanishing in front of him. Turns out he was admitted to a Special Class full of Isekai Heroes that were regularly summoned to Otherworlds since the start of their Middle School. He was told that he was to become their Support to prevent each of the Heroes' fate of dying in the world they were summoned into. Though mediocre, he realized that his ability has a great potential but it needs a lot of hard work on his part.

Unconvinced of being just the Support Character, he vowed to excavate his mediocre ability, all the while supporting the Heroes using it.

And maybe more.

The wrong way to act as a villain no.1: Get rid of the protagonist while he still hasn’t become powerful.

The wrong way to act as a villain no.2: Take the limelight from the protagonist at the key moment.

The wrong way to act as a villain no.3: Make the protagonist fall in love with you, thus making him incapable of completing the final step – eliminating the major villain.

Han Changsheng, Head of the Demonic Cult, is the major villain who’s employed all three incorrect methods.

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As the leader of the first Demonic Cult in the underground world of martial arts and cultivation, Tianning Cult, Han Changsheng carried on the long-standing tradition of an unstable mind and a refusal to seek any treatment.

Originally, his life should have passed by quickly and simply, but one day he kicked a descended Immortal Lord off a cliff. In order to make up for this mistake, he must aid the Immortal Lord in ascending back to his position… but why does this mistake keep growing? Hey, lao zi doesn’t need you as a younger brother, you should look for An Yuan! Don’t chase after lao zi, you’re destined to be An Yuan’s wife! Don’t worship lao zi as a martial arts lord, lao zi is the genuine leader of the Demonic Cult! Hey, Hey lao zi is obviously the major villain! What the hell are you doing?!

- Description from Novelupdates

Li Ling, the eldest son of the Duke of Zhenguo, was a good man with great talent and courage.

However, his beloved wife Shen felt that living with him was boring. After five years of marriage, she was submissive to him in every possible way, but he was not the least bit enthusiastic about her.

If it was just because of his cold temper, she would admit it.

But when the Huns invade, the ninth princess will be forced to get married. Li Ling was so angry that he asked for an order to go to war for the sake of his princess cousin.

She finally understood the reason why he treated her coldly.

She was so angry that she didn’t want to be with him.

The letter of departure has been drawn up, and we are waiting for Li Ling to return to sign it.

Unexpectedly, after waking up, she went back to the time when she was newly married to Li Ling…

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Li Ling married a well-behaved little wife who was completely obedient to him. After being married for more than a month, she served him comfortably.

In the past few days, Li Ling discovered that something was wrong with his bride.

She stopped dressing him in the morning, and she stopped serving him dishes and soup at dinner. She turned away as soon as he approached her at night.

The dignified and solemn Li Ling couldn’t help it.

He came forward and said, “Madam, what’s wrong with you?”

She just gave him a roll of her eyes.

Li Ling scratched his head: “It’s your first time coming to the mansion. Madam, you don’t feel comfortable with it?”

She bowed her head and said nothing.

Li Ling was so itchy that he had to pay attention to her every move in order to pry into his wife’s heart.

One day, while watching a polo match, he saw her hiding her face and smiling at a man on the field; another day, he saw her resting her chin in her hands, reading a poem by a talented man in a daze; and at a palace banquet, he actually saw the prince. I smiled at her…

Li Ling’s heart became more and more confused day by day.

- Description from novelbuddy