[Woman disguises herself as a man + one-on-one romance + devoted couple + somewhat goofy + fictional setting + showbiz]
Su Yu, a minor actress, transmigrates into the body of a woman disguised as a male soldier. The first thing she sees when she opens her eyes is an executioner's blade.
No big deal. She survives on her “acting skills.”
She feigns illness, plays the victim, and makes up military intelligence. General Pei Yan falls for her tricks every time, though he can’t shake the feeling that “there’s something wrong with this soldier.”
Then she nearly sets fire to the army kitchen, steals someone’s pants during combat training, and turns the general into the butt of a stand-up routine at the military camp’s talent show. When supplies run low, she tries “hunger marketing.” With no intelligence, she sets up a gossip network of aunties. When the enemy arrives, she deploys straw-dummy ambushes and firecrackers as weapons.
She throws the whole camp into chaos, but they keep winning battle after battle.
Then she’s struck by an arrow and falls unconscious, exposing that she’s a woman. When Su Yu wakes to Pei Yan’s somber gaze, she gives an awkward laugh. “General... would you believe me if I said I just have really well-trained pecs?”
Pei Yan: “Do you think I’m an idiot?”
Su Yu: “...Heh.”
Later, he pulls her into his arms and says in a hoarse voice, “Su Yu, I love you. I want to marry you.”
Su Yu: Huh? This isn’t how the story is supposed to go!
[She uses showbiz tricks to wage war in ancient times, and ends up winning over the general along the way.]