MTL - The Black Card - Chapter 1402 Immortal research

Xue Xi is forced to fall in love at first sight with this dangerous man on their first meeting. With death being the only other option, she makes the first move:

How long can one ignore the voices in their head?Nine years. To Mark, that was the limit.For the majority of his life, Mark White has been fighting a constant battle for his sanity. The voices in his head pushed him toward madness one whisper at a time, and the music he used to ward against them was gradually losing its effects.As his mental state slowly deteriorated, Mark spent more of his time working on a game he had been developing and lamenting his lack of romantic experience.One night, the voices dealt him a powerful blow, bringing their battle to an end. To his surprise, Mark won the battle, but that came at a great cost.The voices might have disappeared, but a visual hallucination arrived to replace them, taking the form of a character from his game: Maids VS Apocalypse. Little did he know that the real apocalypse was already coming for him.

“A qualified gunner should have enough firepower coverage.”

“So my battery has a diameter of three thousand meters, which is very reasonable.”

After a grand fireworks, Chen Jiang looked at the shocked eyes of the passers-by around him and said seriously.

…

When all races were thrown into a world and started to fight, a world with the theme of survival began.

- Description from novelbuddy

Her step-sister just died three months ago. Now, she insists on marrying Chu Lui, who is supposed to be her future brother-in-law, the mind behind the Chu Enterprise. The world is sure that she, the new bride-to-be, had caused her step-sister’s death in order to seduce him.

Even her own mother says to her cruelly, “Don’t call me ‘Mom’. I don’t have a daughter as vicious as you.”

- Description from Novelupdates