MTL - Invincible Exchange System - Chapter 415 success!

In the era of interstellar warfare, every melee mech will be paired with a long-range sniper mech to cover the battle.
The sniper mecha master Yan Xueshan (beta) and the melee mecha master Arthur (alpha) are just such a pair. The two have been together for six years.
The upcoming Armageddon is a near-death battle.
the day before.
Yan Xueshan: “Remember to write a suicide note in advance.”
Arthur said frustratedly: “I have only one regret. If I die this time, I will be a virgin until I die.”
Yan Xueshan snorted coldly: “…no promise.”
Arthur asked pitifully, “Master, can you fulfill my dying wish??”
Yan Xueshan: “?”
How absurd.
But Yan Xueshan thought about it, this is his comrade-in-arms, whose life and death intersect, chastity counts as a p- OK, I agreed! !
However, after the Armageddon, none of them died.
Not only did they become war heroes, Arthur also turned into a federal prince.
Arthur took out the marriage application, just one signature, and said honestly and faithfully: “Master, didn’t you say that you will go back to get married and retire after this battle? You help me fulfill my wish, and I will help you fulfill my wish too!”
Yan Xueshan: … something seems to be wrong?

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- Description from novelbuddy

Philip never expected his new life to be so… complicated. When a tragic accident in the modern metropolis of Bortinto abruptly ends his struggle for survival, he wakes up as the scandal-ridden heir of a ducal house in a world where magic and science coexist. Any fantasies of an easy, heroic life vanish the moment he realizes that the estate that he is tasked with managing is drowning in debt, and his reputation has been shredded by rumors involving his predecessor’s broken engagement to the socialite Lady Rosetta—the granddaughter of a prince.Even as he scrambles to rebuild his estate’s fortunes—grappling with contaminated land, mounting debts, and shrewed industrialists—he unearths troubling secrets about the original Philip’s heartbreak and suicide. A dark, hidden force seems intent on wiping him out for an unknown reason. As conspiracies emerge linking Lady Rosetta’s departure to these shadowy machinations, Philip struggles to separate ally from adversary, not knowing why this power in high places is so bent on destroying him.Meanwhile, the realm teeters on the brink of monumental change. Technological and social revolutions collide with century-old magical traditions, and war drums thunder on the distant borders. Armed with his modern knowledge of finance—now fused with the kingdom’s burgeoning industrial innovations—Philip attempts to ride the trends and transform his estate into a beacon of prosperity and secure his heirship to the ducal title. Yet each small triumph only attracts more enemies.Tasked by the System with cultivating a supernatural entity while uncovering the real reason behind Lady Rosetta’s canceled engagement and the original Philip’s tragic end, he must also shield those he grows to care about from the looming threats. Will he harness the synergy of magic, technology, and commerce to steer his estate toward greatness, or will malevolent forces quash his second chance at life? Will his second chance at life end the same tragic way as his first?

Ein was a hitman on hire. A killer, a shadow, a death with insomnia, if you may.He had witnessed countless pairs of eyes dim as the light of life faded, leaving nothing but vile hollowness. Needless to say, the sight of a soul popping out of the dead body was a first.And it wasn't just any soul. It was the dead heir of Byers Holdings, the same guy he killed with his own hands. Turns out the rich boy Adriel had a horribly irritating and loud soul, but worst of it all - impossible to get rid of.Who would have thought that killing on a blue moon night could lead to being haunted?

She has come a long way.

Orphaned, born a weakling, and being the infamous good-for-nothing of Azure Dragon Country. Gu Ruoyun was the shame of the proud Gu household. Falsely accused of a crime she did not commit, she was betrayed by her family and beaten to death by her own grandfather. But life took a fateful twist on that very day — she was revived.

Newly awakened, she is now the Master of an ancient treasure that resides within her body. Precious cultivation pills, treasures beyond her wildest imagination and spiritual beasts, all within her grasp… She is the apple of the eye of all under the heavens, including that of a mysterious, handsome man.

Now she only has one goal — to conquer the world.

- Description from Novelupdates