The Side Character’s Hidden Boss! - Chapter 403 - Faulty Brake

A Miao’s first impression on the male protagonist: a psycho and pervert who always attempts to make physical contact with her through unrighteous means.

Shen Xinglan’s first impression on the female protagonist: dunno.
A Miao, a street burgler, ran into Shen Xinglan, a billionaire in S City. Who would’ve thought that they would start a beautiful, romantic love story with ups and downs?

Shen Xinglan came back from a kill-training base on a distant island and started a successful career as a businessman. Along with numerous incredible helpers, can he manage to resist the plots and schemes against his enemies in his family? Does he have more secrets? What’s the untold stories of A Miao’s mysterious background?
Join their journey!

- Description from Novelupdates

Scheming female assassin transmigrated to become the weak Eldest Miss, her story is wonderful and stunning, attracting peach flowers to blossom open. Cold calculating emperor? Geniusly bad crown prince? Insidious happy-go-lucky prince? Gentle physician? Ice-cold mystery male? Who is her true love? Haha, but she only eats, definitely will not take responsibility! Beautiful men be careful!

Three years into Qin Yu's marriage, his wife and in-laws all hated him.

The downfall of the infamous white lotus, Lexi Yang led her to the only escape she knew -- SUICIDE.

Born with a golden spoon, having all the privileges being the young miss of the prestigious Yang family, Lexi Yang was the type of person that whatever she wants, she gets. However, fate must have challenged her the moment she fell in love with the domineering CEO of Liu Empire.

Alas, just like in every romance novel, Morris Liu fell for another woman who's kind, fragile, and gentle.

Due to her intense desire to gain Morris Liu's love, she has done extreme vicious deeds. But in the end, everything backfired on her.

Now, on her death moment, just as her vision went to a pitch-black abyss, a cute minion voice was heard.

“Chuchururu~! CONGRATULATIONS! Your viciousness score surpassed the preliminary test! To receive full access to the 'otome love system', here's the initiation main task -- make your ex-fiance's best friend fall in love with you!”