Prince charming, your persona has collapsed! - Chapter 4 - 2 Former Roommates

This is the novel behind the TV series, “Love Like the Galaxy”.
The following synopsis is based on the TV Series.

“The young Cheng Shaoshang was left behind because her parents had gone off to fight in the war. In order to protect herself from her scheming aunt, she had to be extra diligent while pretending to be the opposite. However, years of estrangement have made it difficult for them to become family again.

Lacking love her whole life, Cheng Shaoshang is both pragmatic and insecure in choosing a partner for marriage. She encounters three men – the emperor’s adopted son Ling Buyi, the talented Yuan Shen of Bailu Mountain, and the aristocrat Lou Yao who each have their pros and cons. Although the road to love is bumpy, she never regrets every choice she makes. Through her interactions with Ling Buyi, she unintentionally becomes involved in the mystery surrounding his family and his identity. The two grow from their experiences and worked together, upholding the righteousness in their hearts to resolve a national crisis.”

- Description from Novelupdates

In a modern world, a professional assassin was murdered by her beloved and found herself revived in an ancient world as a general’s daughter with a weak physique. She was engaged to a prince, but because she did not have a nice appearance, her fiancé and sister attempted to kill her. Although she had to struggle to survive, there were also those who unconditionally loves her that supported her in her time of need.

【Gunfight + Mystery-solving + Decisive Killing】I had already been backstabbing the underworld, and now you're telling me I was planted as an undercover cop???Dean looked at the boss with eyes that would not close in death, scratched his head, and could only take the opportunity to transform into Los Angeles' five-star good citizen—Detective Dean!Ps:There's nothing supernatural, but there is a dark world out of our ordinary reach, filled with assassins, thieves, and all kinds of bizarre cases...

Anna a normal girl waiting to have all her dreams come true falls into a deadly trap when she begins to desire someone she shouldn’t. After being shocked to reality of her boyfriends betrayal she dives head first into the flames of sin with the Don of the underworld.
Ren a ruthless cold heartless man lusts for someone he shouldn’t but can’t let go. He just didn“t realize how taboo she was an...