The Reincarnated Villain Can Break the Fourth Wall! - Chapter 54: Immortal Daughter! Learning Offensive techniques!

Following her attempted assassination, Fatima found herself amidst a meticulously staged slave auction orchestrated by her mysterious rescuers in the capital city of a prospective ally empire. Now a slave of the Kartier Duchy, her life as a princess seems far behind her as she spends her days toiling the farms under the scorching sun. Just when all hopes seem to be lost, Fatima’s painful days eased upon meeting the strikingly handsome heir of the Kartier duchy along with his cold and seemingly gruff knight. Will she ever overcome the shackles of slavery and return home to reclaim her title or will spend the rest of her life enduring the cruel treatments of the duchess? Torn between a charming heir and a dubious knight as her potential escape routes, which hand will she grasp?

Ian was an ordinary guy on his way to work when he suddenly found himself in a strange and dangerous world ruled by dark races like vampires, werewolves, and demons. Transmigrated into the body of a lesser vampire, Ian must quickly adapt to his new reality where survival is a constant struggle.Just when all hope seems lost, Ian discovers he has a unique advantage: The Strongest Body Customization System, which allows him to modify and customize his body by consuming biomass. With this golden finger, Ian starts to turn the tables, designing bone claws and other enhancements to give him an edge against the terrifying werewolves and other supernatural threats.But as Ian learns more about the Curtained Imperium and the rigid hierarchies of the vampire race, he realizes that defeating his enemies is only the first step. To survive and thrive in this dark and brutal world, Ian must rise through the ranks, uncover the power of his system.Need to fly? Customize a pair of angel wings!The body is small? Add hundreds meters of height and become bigger than Godzilla!Need a weapon? Customize bone claws and kagune on the spot!

This is the story of a modern sailor who was accidentally reborn as a soldier of the Brazilian Expeditionary Force, and finally became the largest plutocratic family in Brazil by virtue of his foresight.

- Description from novelbuddy

I intervene in all events of the game. And take it away.