Strong alliance + Marriage first, love later + Mutual love between vests + Family, country and world + Two-way redemption
She is the war god of the frontier and the most powerful dark blade in the royal family.
A decree granting marriage took her from the battlefield of mountains of corpses and seas of blood to the capital city filled with beautiful things. She was asked to marry the dandy prince who was ridiculed by the whole city, and she was even asked to lurk in the government enemies' houses to find "lone wolves" who collaborated with the enemy.
He is the number one loser in the capital and the enemy's deepest secret chess player.
Marrying her was to conceal his identity and fulfill his mission. He had played enough ridiculous dramas, but on his wedding night he discovered that this seemingly arrogant daughter of a general had a cocoon in her mouth and a glint in her eyes.
Two-way disguise, picking off each other's vests, pretending to be real.
She investigated his collaboration with the enemy, and he probed her details; she bumped into him in the brothel on a mission, and he found her in the study exploring the secret room at night. Until he was surrounded and killed on a snowy night, and he was in a deadlock. She led the secret guards to come out in blood and picked the enemy's leader with a spear:
"The person who touched me—did he ask me?"
But when the war between the two countries resumed, he stood in front of the battle wearing King Di's mysterious armor.
Her silver spear was stained with blood, and she pointed it directly at his throat: "Surrender, or die."
He smiled, with wild waves in his eyes: "Qin Zhuo, my life has been yours for a long time. Now - I'm here to give you a peaceful world."