When Fu Xuan went from a little girl trailing behind her father and brothers to an adult who could stand on her own, she was all alone. To earn a place in the court and investigate the sudden massacre of her family years ago, she disguised herself as a man and prepared to take the imperial examinations. To keep the powerful courtiers from foisting a woman on her and exposing her identity, she chose an older sister she had once saved to be her fake bride. But later, she discovered that this sister didn't want to be her pretend wife. She wanted to be her real wife. And this older sister wasn't an older sister at all, but a stunning, ruthless demon who had crawled out of hell. Fu Xuan couldn't drive her away or get rid of her...
P.S. The male lead is a man with a feminine appearance. By day, he is known as the most delicate and fragile beauty in Kyoto; in secret, he is its coldest and deadliest assassin. His feelings for the female lead are sincere and devoted. Falling in love without knowing how, then loving deeply without turning back, is the best way to describe his feelings for Fu Xuan.
The female lead is first drawn to the male lead's looks, then comes to love him deeply. After all their twists and turns, she finally realizes they have become companions on the same path. Her journey had once been a solitary one, but with him by her side, Fu Xuan finds the road isn't so difficult after all.