Not Just Anybody Can Become a Villainess is a Manga/Manhwa/Manhua in (English/Raw) language, Comedy series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

I entered the body of Niviea Herbert, the only daughter of God in the kingdom, who was offered as a sacrifice.

She sacrificed herself as the eldest daughter of my family for them, lost my fiancée to my rival, and gave my life as a believer for the kingdom... there was just calamities upon calamities happening.

"There's no point in dying. Fuck the sacrifice." Destroying her death flag and aiming a bow that will change her fate to fight God, the final boss!

“So the actions I’m taking to save my life are evil?” She lifted the corner of her mouth and laughed.

“If that’s the case, I'd be happy to be a villainess."