The Last Rose Left Unturned

Han Jin died a tragical death after being falsely accused of murder and hanged to death.
She is reborn again ten years into the past when she is only eighteen years old.
Han Jin escapes from her family after her rebirth.
As she leaves the house, she promises herself to come back one day and serve them a dish of revenge.
...
Prince Tiangming is in search of the lady who had a night stand with him a few nights ago.
He searches through the whole province and other surrounding nations after all he clearly saw her face and would definitely recognize her even if it was only by her smell.
He could remember almost every detail about her even though they had only shared one night together.
...
Qin Feng is a new palace bodyguard and the crush of many ladies in the palace, both old and young because of his extreme beauty and gentleness.
He soon manages to rise into the team of the prince's bodyguard after saving the life of the prince.
Qin Feng is soon popular in the prince's quarters due to him flirting with the maidens.
He soon encounters the prince and for some reason the two sense a little bit of familiarity.
...
Tiangming has searched the whole providence, checked every single lady and has not been able to find the rose which captured his heart after making him lose his virginity.
One thing Prince Tiangming didn't know was that there was still one rose which was left unturned and it was right beside him.

This novel shares the same universe with Flames of Love.