Dominion's End - Volume 2, Chapter 9: Jiang Xiaorong

Wang Zhong arrived in an alternate world and became embroiled in this world's global war.What he gained was a cheat, akin to a real-time strategy game's overhead perspective, and he could even see through the eyes of his subordinates' units!So, he decisively started micro-managing, “Shift the machine gun position five centimeters to the left! Place the anti-tank cannon in the forest on the right!”Three years passed in this manner, and Wang Zhong looked at the marshal's baton in his hand, then at the double-headed eagle flag behind the emperor's envoy.“In my hometown, there's an old saying, 'Princes and generals, are they not sprung from the masses?' Envoy, do you know of it?”

Talented in Magecraft but useless in physical combat?

The first time he saw this woman, she was holding on the arm of an old man who looks like he’s about to enter the grave at any moment and smiling like a blooming flower;the second time he came across her, she was wearing a nurse’s uniform and flirting with a man; the third time that they met again, she appeared before him, as his blind date! Guan Ling Chao, the current prince (young master), an outstanding army officer, due to his family’s (elders’) threats to forced marriage, had no choice but to go on blind dates. Yet after meeting hundreds of different women, she was the only woman in the action group

- Description from Novelupdates

Commandery Princess Gu Shengyin of Qinghe had died.Her beauty eclipsed Jinghua, and her talents were renowned throughout the world, yet she lost to a woman inferior to her in every aspect.It wasn't until after her death that Gu Shengyin realized she was nothing more than the protagonist of a supporting character's counterattack story, doomed to be cannon fodder for a transmigrated lady……In the pure white space, Gu Shengyin emotionlessly received the memories transmitted to her by the System…...System: “In this day and age, the supporting character must turn over a new leaf, the cannon fodder must counterattack, and the extras must make their presence felt. As the female lead, you are their biggest obstacle.”Gu Shengyin's eyes glinted with cold light. Her smile was stunningly beautiful. “Then let's see: Who, indeed, should be the stumbling block that gets kicked away, and who, in the end, will be the ultimate winner!”Those supporting characters and cannon fodders who wish to eliminate the female lead and rise to the top, have you thought about how you want to die?This story is a sweet romance, 1V1.