21st century Goguryeo - Chapter 421 - Season 2 Book 17, Chapter 3-1 Russias self-sufficiency.

In the age of the Great Liang Dynasty, the lives of the people were made convenient with steam-powered machines that run on a fuel named Violetstream Gold. Chang Geng, who lived in a small countryside village, shared a distant relationship with his mother while his stepfather was away most of the year round, and the only people he was close to were two little kids, the village teacher, and his yi fu – adoptive father. But his life was flipped upside down one day following the barbaric Man tribes’ invasion, and it turned out that his entire identity had been an illusion – not only was Chang Geng himself not the country boy he thought he was, but also his mother, his teacher, and even his beloved yi fu…

The land of Aleisterre is a world of might and magic, sword and sorcery, where wandering knights and mysterious gods shape the fate of kingdoms. Wang Yu, a resourceful and unorthodox protagonist, finds himself inexplicably pulled into Aleisterre, a place steeped in ancient powers and political intrigue. With little understanding of the magic and faith that underpin this realm, Wang Yu is thrust into conflicts he never sought out—yet must navigate carefully if he’s to survive.Official blurb:Dragons' wings cut through the sky. Knights charge forward, magic tearing apart everything before them. Wizardry distorts the fabric of reality itself. The steam revolution stirs in one kingdom; the endless seas echo with ancient, distorted calls. Gods rule from high above, and the dark abyss leads deep underground.Wang Yu, from Earth, arrives in this unfamiliar world of fantasy.Straightforward and practical to the extreme, Wang Yu hates politics, despises intrigue, and prefers to approach everything head-on. In his own way, he leaves his mark in this mad, chaotic world.“I don’t care to listen to or understand my enemy’s story.”“I'm the tank, and you're the carry. Together, we'll be invincible.”“A man’s got to have a sense of himself, more than anything else.”Armed with an iron hammer and unbreakable will, he smashes through every obstacle in his path.

Collection of short stories.

- Description from Novelupdates

Once Gu Qingjiu, she was fortunate enough to be born in the “best” family, ended up having a miserable and unjust life.

Reliving her life once more, Gu Qingjiu chooses to enlist in the military and bear the toughest hardships she has ever faced. Everyone says that she’s the least possible person to join the special forces. However, she manages to prove all of them wrong.

Good-for-nothing? Who’s the good-for-nothing? Is she a good-for-nothing when she can throw all of them onto the floor in a fight? Is she a good-for-nothing when she has results better than everyone else? She’ll prove all of them wrong.

Enter Helian Niancheng, the well-known, youngest major-general in Beijing. A banishment sends him into the basic ranks in a military camp as a new recruit. From then on, he meets a person that makes him dote on and protect at all costs, his beloved. However, his beloved is only focused on fighting and killing. Major-general Helian declares this to be a very bad, a very terrible situation. Yet, Gu Qingjiu merely replies,

“Scram! Lower your gun if you dare!”