MTL - The Legendary Mechanic in Marvel Universe - Chapter 50 found it

Kael Draven, the strongest human who fought against the Anthi-Org—a universal threat set on conquering the universe—was betrayed by one of his own when victory was almost within reach.He and his allies were known as the Exo Primevals, the first to wield an Exoskeleton suit known as Aegis Prime—a powerful piece of equipment created by the most advanced species to finally destroy the Anthi-Org and end the war.But with his teammate betrayal, Kael was sealed away in impenetrable ice, his people’s planets fell under enemy control, and the Anthi-Org rose to dominance. The Exo Primevals were forced to retreat, doing what they could to salvage what remained of their worlds. Countless lives were lost.Centuries passed, and Kael’s icy prison eventually shattered. The strongest human—or what used to be—woke up in a future he barely recognized.Learning that the Anthi-Org won, Kael is now driven by revenge. He vows to find the one who betrayed him and finish what he started.The war may be lost, but that doesn’t mean it can’t be reignited.---Additional Tags: Cold blooded protagonist, Smut, S*x Scenes, Antihero, *sshole Protagonist and more, mainly for flexibility.What to expect: This novel is LitRPG. If you are a fan of Power Rangers/Kamen Rider, Warframe, and other Suit related novel/movies/shows then this is for you.Try to read for at least 20 chapters and see if this novel fits your taste. It's slow at first as the world and structure of the story is forming along the way.

Chang Xia is an anomaly in the tribe——

She doesn’t dress up, make friends, or play around. She likes to hoard all kinds of wild vegetables, and she doesn’t eat meat, saying it’s unpalatable. The whole tribe was worried that she would not grow up and die.

When she became an adult, she directly picked up a sick seedling and married her.

later.

Chang Xia used the hoarded wild vegetables to farm and feed the entire tribe; she built houses and roads, so that the tribe would no longer suffer from cold and freezing; she also conquered the entire ancient continent with delicious food.

Finally, the clansman knew that the sickly seedling beside Chang Xia was once the most powerful totem warrior of the tribe. At this time, the clansmen understood that Chang Xia was the most powerful.

- Description from novelbuddy

A novel revolving around being transported to another world with an op system. The mc spends his day chasing skirts and doing missions to level up. A standard journey to the top with lots of girls from various animes and games with a twist of that gaming feel (hunting mobs, doing missions).

Yin BiYue has made the worst purchase ever. After transmigrating countless times into the bodies of canon fodder villains, he buys a ‘Fiend Halo’ from the Rebirth Company, supposedly the best aid for an up and coming final BOSS!

He’s ecstatic to finally get a villainous role where he won’t die after just a few lines, if any at all, and is raring to become the best opponent a protagonist will have… However, why was everyone looking at him with pitying eyes? Why was the protagonist rushing over to help him get out of his crimes? Most importantly, why was his ‘Fiend Halo’ just making things worse?!

Meanwhile, the intern salesperson at the Rebirth Company discovers that he might have accidentally sold a prototype White Lotus Halo to a certain villain…

- Description from Novelupdates