The younger sister mistakenly identified her brother when visiting relatives and was kissed by the c

Qiao Xinxin is the newly recognized daughter of the Qiao family.
In order to avoid marrying her fiancé who was disabled due to a mission, the fake heiress Qiao Mingzhu forced her to drink alcohol at the family reunion banquet and sent her to her fiancé's bed.
Unexpectedly, she went to the wrong room and spent a wild night with the son of the Qiao family's mortal enemy, a man so outstanding that he was outraged by gods and men.
She fled overnight, and the man searched everywhere for her.
To avoid marrying her disabled fiancé, the fake heiress used underhanded tactics and pressure from her family to force her into a marriage in her place. She had no choice but to seek refuge with her adoptive parents' eldest brother.
However, on the day she went to seek refuge with him, her older brother, whom she hadn't seen for ten years, was so handsome that she almost didn't recognize him!
But in order to get along well with her older brother, she decided to use her best skill—acting cute!
But... why is the way this man is looking at her so strange?
Qiao Xinxin only found out later that her brother had gone on a mission, and a young commander, who was her brother's good friend, was personally taking care of her.
But...this man looks so familiar.
Huh? Why does he have that family birthmark that's typical of the Qiao family's arch-enemies?
No! She seems to be the person she had sex with that day?