Supervillain Idol System: My Sidekick Is A Yandere - Chapter 6 - : A Strange World Part 2

She was reborn in the 1970s, when there were no mobile phones or TVs, people lived in poverty and marriages were arranged by families. He, the wealthy and powerful head of the regiment, who governed the local army, helped her join the army so that her family would no longer be bullied and could live a good life. And Suddenly, he proposed marraiage to her...

Throughout this current life of mine, I will pay no attention to my past lives, nor will I seek future lives. I wish to live vigorously, to pay back debt of gratitude and fulfill duty to avenge, to defeat valiant heroes from all species, and to proudly laugh at all the Gods and Demons of the Six Path of Reincarnation!

- Description from Novelupdates

A smug smile appeared on her step sister's lips when she finally revealed she was actually pregnant with her mate's child.Her father's futile attempt to apologize, for ignoring her all this time, because he had his own reasons and asked her to understand.A plea of forgiveness from her mate as he begged her not to reject him, claiming it was just a stupid mistake that he shouldn't have made.And to top it off, a cursed alpha from the north, to whom her step sister was actually promised, is here to collect his debt, so she has to take her place as the sacrifice now.Darn!

Song Yaoyao had already died in her previous life. Her life ended on the day of her 19th birthday. Cause of death: heart failure.