Re-Awakening: I Became a Pay To Win Boss Monster - Chapter 51: The One Sided Proposal

Witnessing her boyfriend cheating on her with her bestie, Shiyao was so angry that she went to a pub for fun and met a man, who was really a piece of work. After a crazy night she fled away, but was embarrassed to know that the man she slept with was her boss You Ze.
Jesus, give her a break!

- Description from Novelupdates

Demons are rampant, the court is corrupt, the human race is declining, demons are rampant, and the world is treacherous and haunted.

Martial arts masters are just more delicious blood food in front of monsters.

There has never been a savior in this world!

My name is Jiang Heng, and I am the one who runs amok!

- Description from novelbuddy

Good and bad luck has followed Zach ever since he was five. Poor guy. His life has been far from the sweet and peaceful paradise one might expect of the youngest son of one of only four dukes in a great Empire.But a little more excitement than expected doesn't stop him from pursuing his dreams of summoning, and perhaps his luck is finally turning once he manages to summon something great.Armed with maids, a scummy gift of luck, and a strong will, Zach sets out to live life as he pleases, even to the annoyance of those around him. First stop: The Academy.

She was drugged by her ex-boyfriend and had her first night with a mysterious man.