A Blossoming Flower (Falling Petals)

To be reborn in a game, and a romance game at that! Amber didn't expect to die from a small illness, only to wake up in one of those japanese romance games she played when she would get bored. And from all the novels she read as if training for this day, she became a villainess to boot.
'why couldn't it be an easy one? why is it this game of all choices man...'
She became Sakura Serenity, the daughter of the emperor of the Eternity Empire and the villainess who gets in the way for all main capture targets.

It was discovered that Rose, the Heroine had strong purification abilities as well as healing and defense and was the daughter of the emperor. It was a cheat or heroine halo that the damn gamemakers made because the setting was 'after 500 years of peace from the bloody and horrific war against the corrupted ones, there in the shadows, they grow stronger and will once again rise to endanger the empires again, the girl will be the key to the survival of all.. etc, etc'
So the heroine will train and capture hearts along the way to save the world sigh~ how annoying.
Sakura became the princess who grew jealous and ended up being corrupted and was a stepping stone for her sister.
Follow Sakura as she break through the "game" and changes her fate. She may even discover that her being Sakura wasn't a simple transmigrate or reincarnation like she thought.