Isekai

MC was named after the day of a week, Wednesday, and was born as a slave. On the verge of death, the crown prince and his escorts came to her rescue, claiming that she's the lost princess as her eyes changes color that only an Askanier bloodline can do. She is the key to undo the curse of the imperial family, that was cast upon because of the first emperor's sin

I became a princess after a bus accident. But why does this situation seem so familiar?

She was cut off from the world until she was 5 years old and she was taken in by her father the ‘Monster Duke’.

One day, I sneaked into father’s study without anybody knowing and discovered a strange book... What’s up with the content? I will die because of a sickness? Then, are you treating your foster daughter well? In the end, I’ll die because I’m sick but it won’t happen before that! Then... I will do whatever I want!

She was adopted by the devil-like count. Before dying, Hailynn lived her whole life being confined in a hut. When she opened her eyes she was 8 years old. She returned back in time right before she was to be adopted by the count.

I reincarnated as the villainess in a book!
The one who dared to commit attempted murder on the heroine is the owner of this body?
Let’s just live in a quiet place where we have fun and eat! That’s what I thought for a while.
It was so, so, so cold here in the north, where I was kicked out as a punishment.
Before I froze to death, I called the Great Demon of Fire and set fire to the fireplace but...
Why isn’t he going back? If you’ve done the job, shouldn’t you go back?!............

Of all things, I possessed an ugly noble lady.
For the sake of receiving the attention of those who despised her, Sylvia Atlante, in the midst of all the ridicule and disrespect, made herself known as the “ugly lady”.
However, one day, I happened to possess Sylvia’s body, who drank poison and ended her own life. I didn’t want to live like her.
“I’m rich and healthy, so why do I need to care about other people? This is my life, I’m going to live as I want!”

MC seems like a reincarnated person and a villain in this story. In this story the Villain will torture the heroine because she obsessed with ML. The story start with MC woke up after having sex with ML. MC went like~ omg. what did I do! I fucked up! and proposing to ML to treat this as one night stand but the ML is unwilling..

I spent an entire five years as a trainee, working relentlessly to achieve my goal. But before I knew it, my juniors began debuting before me! I lived days without hope, without being given a single chance, and now this happens...?! One day, I suddenly took possession of a duke's daughter, Ashley. Presumed a wicked women, even though she never intended to be, Ashley was fated to die by fire. I only have one year left to live! But, why are there so many handsome guys here?!!!

I entered the world of my favorite novel and genre through someone else’s body. Of course, out of all the characters, I just had to enter the body of the protagonist’s aunt, the woman who abused her nephew, the selfish villainess. According to the original storyline, in any case, my nephew was expected to leave my side soon. Compassion for him grew, so I put my most sincere effort into tending for him until the day we parted-.........