MTL - Doomsday’s Rabbit Essence - ~ Work related

Living life in this new world was already hard enough....So why?Why is the villainess of this world obsessed with me?

The world that nurtured the civilization which reached the pinnacle of magic was on the verge of destruction.
The last survivor transmigrated to the past, when the magic civilization started growing, as countless mages were still fumbling their ways through the thorny paths of magic knowledge.
He, who came from the end of the magic era, aim to reach the pinnacle of magic.

- Description from Novelupdates

“I want a divorce,” Nathaniel said with no emotions.I was shocked at how callus he could be. I didn’t get a chance to tell him about my pregnancy.After five years of marriage, I still couldn't warm his heart. I understood I would never be able to replace my sister in his heart.“Fine. Let’s divorce then.”~~~~~~~~~~~~~I, Zara Moore, married my brother-in-law to fulfil my dying sister’s last wish. I poured my heart into this marriage, cared for him, and loved his son like my own, hoping that one day, he might return my feelings.It was only my wishful thought. I ended up being killed in my past life.Reborn, I could see the truth clearly.To him, I was a promise he made to his first love. Tired of being just an obligation, I decided to leave him and not tell him about the child in my womb. But with tearful eyes, he pleaded for one more chance.~~~~~~~~~~~“Don’t bring up divorce,” Nathaniel growled, his cold gaze fixed on me.“I am done with this emotionless marriage,” I retaliated.“What about the promise you made?” He hissed, squeezing my arm.I gritted my teeth. “I tried to warm your heart for five years, but I failed. I don’t want to keep doing this.”His expression changed, his eyes pleading. “Give me a chance. I’ll make up to you.”I stared at him, stunned. He clearly didn’t love me. Why was he unwilling to let me go?

The undisputed greatest doctor in Korea, Baek Gang Hyuk.