MTL - Sweetest in the Universe - ~ Works related

This legend tells the tale of the protagonist, Kuroki summoned to protect the demon king from the hero.

Kuroki, unbeknownst to him, suddenly came to another world. He was summoned by the demon king, Modes. The territory which the demon king overrules was in the midst of being destroyed because of the hero. He had no choice but to bow before Kuroki.

“Please save us, Savior Dono!”

Kuroki nodded, deciding to save the demon king due to an unexpected turn of event.

The Strongest Magic meets the Mightiest Mecha.

I have stolen Golden Mechas from the deepest vaults of the most tightly guarded fortresses in the world.

I have personally destroyed more armies than the top three superpowers have in the span of the Absolute War - combined.

I burned down the terrorist megacity of Habon.

I was expelled from the Union of Heroes at a younger age than people are allowed in.

I have talked to Ancient Gods, loved women, and devoured mechas that would make superpowers cringe in fear.

I have faced demons head on in moonless nights others fear to speak of during the day.

I am deified in a thousand cultures, and labelled as the devil incarnate in the rest.

I am the Mecha Emperor.

You may have heard of me.

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Excerpt from Chapter 1

This is where it all began.

A junkyard.

Oh no, this isn't your clean, mechas-only junkyard that was the 'starting point' of many mecha geniuses out there.

I have seen and heard my share of rags-to-riches stories, and many of them claimed that they had started from 'junkyards' and slowly grew to be where they were right now.

From Zero to Hero, they declared.

You can do it too, they said.

As long as you work hard, everything is possible, they claimed.

I call bullshit.

Life doesn't work like that.

Only a pure maiden can have a privilege to make contract with a spirit.

In Areishia Acadamy, maidens from noble family were gathered there, giving them an elite education to become a spirit contractor. A boy Kamito, by accident he peeped on a girl, Clair, who was taking a bath, and he even made a contract with spirit that she wanted.

Kamito was actually an irregular male spirit contractor, which should not exist.

Sivis was transported into the game Gandanyir.In a world where nobles monopolize extraordinary powers while commoners, barely better than pigs and dogs, suffer endless torment, he inherited the title of the Evil God.By continuously slaying enemies, Sivis could earn Soul Points, which allowed him to enhance his monsters.Goblin → Elemental Goblin → High-level Goblin.Skeleton Soldier → Skeleton Mage → Bone Dragon.Stone Golem → Fire Demon → Carved Gargoyle....In order to strengthen his monsters, Sivis started wars, annexed nations, and slaughtered countless nobles and kings.He also casually gathered numerous helpless commoners, bringing them under his domain system, improving agricultural and industrial technologies, ensuring that these people had enough to eat, teaching them to read, and turning them into the creators of his domain's wealth, which he ruthlessly exploited.But... Sivis had two doubts.First, why is it that his subordinates are always bringing him women?First, it was the Saintess from the Church, then a peerless female knight, followed by a princess from the kingdom, a succubus from hell, an angel from the Holy Hall...Second, why, as an Evil God, are countless people calling him the Savior, the Wise King, and the Benevolent Father of all beings???