High School DxD - Volume 17 Chapter 5.2

When our protagonist becomes the game character Jun Karentia, she thinks she has it made. She may be just a lowly support mage, but with her knowledge of the game, she knows she can finagle her way to the good ending following around the main character, Fabian. The problem? This game doesn’t end after one playthrough. Jun is prepared to guide Fabian through the second playthrough to the true ending when… Fabian abandons her. Now the Grand Duke Mayer Knox—captain of the Dark Knights and the secret final boss—is determined to have her join his party. Can Jun turn the final boss into the main character? Why is Mayer Knox so intent on having her in his party? And when will these rumors about being his lover stop?!

Xia Yuqing is a shut-in+fujoshi from the 21st century. After an accident, she transmigrates into the body of a young princess forced into a political marriage to another country.

I am a vampire, possessing the body of the villainess in the novel.

I want to live quietly so I can live peacefully.

When I saw the Duke of Esteban, I lost all my reason and bit his neck.

Duke of Esteban just so happens to be the greatest figure in the empire.

I didn’t have enough strength to fight the desire, so I slept with him…

I’m in trouble. Let’s erase his memory and run.

“Your Excellency asked me to convey a message ‘I let you have my neck and body, but you threw it all away and ran.’”

What are you saying?

Does he remember?

Later, there was a strange declaration of war after we met.

“Don’t avoid me and let’s continue to meet. Also, when you need blood, come find me.”

Duke, would you please stay away from me?

It’s hard to breathe because of your taste.

In the past life, he was an aerodynamic engineer of a well-known company, and in this life, he is a college student of a famous school.

When the two identities are perfectly integrated, what sparks will appear.

His life experience is also slowly uncovering the mystery, whether he can beat the tycoons of this era, and whether he can stand at the peak of world business.

- Description from novelbuddy