Married To Darkness - Chapter 3: I’m A Vampire.

A young surgeon, who is struck by a system, embarks on a bizarre journey of life.

One day, Zhang Fan, a poor medical student, receives a medical system from the future. This turns him into a new shining star in the medical field. Along the way, he must face medical corruption, competition, and infighting from other doctors, and even find time for a love life as he strives for the top of the medical field!

- Description from Novelupdates

Gu Jin crossed into a novel as the supporting character and best friend of the main female lead, Cheng Xin.

Cheng Xin was frequently surrounded by men of status and quality. As Gu Jin was the female lead’s dearest friend, she doesn’t mind settling for the leftover meager soup if the female lead chose to eat the meat. The two sisters believed they’d enjoy this friendship for a lifetime.

But just as she was ready to latch firmly unto Cheng Xin’s golden thigh, she discovered the body she crossed into had memories of future events beyond the novel’s plot, finding out that her marriage would end in utter failure.

The female lead, Cheng Xin who often quarrelled with the male protagonist would head over to Shao Chong for comfort even though Shao Chong was married to Gu Jin. And after several incidences, Gu Jin advised Shao Chong to have a sense of propriety as her spouse but he told her not to think too much about it, claiming that he only maintained a pure friendship with Cheng Xin.

On the day Gu Jin was kidnapped, her good husband stayed by her cousin’s side and accompanied her to the hospital.

When Gu Jin transmigrated into this new world and learned of the truth, she did not wish to waste this new life as a supporting role for her cousin as the previous soul had done. She’d not live a life as a spectator in someone else’s love story. No. She would be the protagonist of her own romance in this new life.

- Description from Novelupdates

“I'm your husband” suddenly a man claims to be my husband.How did it happen?Before my coma , The man I loved betrayed me and choose my step-sister, xie huelin . I was accused of abusing drugs by xie huelin and My birth parents kicked me out of the family.My foster mother was the only person who believes in me, But on the day I went back to my foster mother house, the house was burned and she fell into coma.The one who caused it was my step-sister, When I went to the hospital to meet my mother, I met an accident, that was also staged by her!I fell into coma and after a year I woke up, I met a handsome and he's known to be cold-hearted, ruthless and expressionless man who was known as the Emperor of the city. The CEO of Li cooperation , Li jun WeiAnd He claims to be my husband?!