MTL - Portable Space: The Peasant Princess - Chapter 700 Wife, be gentler

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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Search keywords: Protagonist: Yan Xueshan, Arthur ┃ Supporting role: ┃ Others:

- Description from novelbuddy

【 Warning: Mature Content R-18 】“To rule the world, he wanted to be a King. Fate decided he would be a Queen.”*Slow-Burn TF: A detailed transformation from a lean boy to a voluptuous, devastatingly sexy beauty.*Genre: Gender Bender (Male to Female), High Fantasy, Adult, System, Harem, Incest (Cousins), R-18, Mature, Yuri (After Transformation), Domination/Submission.Alex was a disappointment. In a world ruled by powerful Gene Warriors, he was a nineteen-year-old F-rank awakener with zero talent, working the bellows in his uncle's blacksmith shop.As a fellow traveler from Earth, he dreamed of a powerful system, strength, domination, and standing at the top. But a thunderstorm in the Green Leaf Mountains changed everything.Seeking shelter in a dilapidated shrine, Alex stumbles upon a broken statue and a mysterious, silver-haired beauty who shouldn't exist.She is the Silver Serpent Empress—an ancient, predatory soul in need of a body. And she chooses him.Locked in a battle for his own body, Alex watches in horror as his rough skin molts away to reveal porcelain perfection, his muscles soften into dangerous curves, and his presence becomes a pheromone-laced trap that no one—male or female—can resist.“Stop fighting it, little vessel,” the Empress whispers in his mind, her voice like honey mixed with poison. “Look at how your cousin looks at you. The City Lord wants to chain you to her bed. You have the power to bring kingdoms to their knees... all you have to do is open your legs.”Alex trembled, clutching his chest where his nipples were throbbing painfully against his shirt. “I am a man! I won't be your toy!”“Are you?” she laughs. “Then why does your body tremble so sweetly when you are touched?”Alex must navigate a world where he is no longer the hunter, but the ultimate prize.