Mated To My Boyfriend's Dad - Chapter 246: Cullen Is The Vampire

The Immortal Path led to Longevity and Sovereign was heading in ease. When the Longevity was no longer in ease, all living beings were just prisoners. Conspiracy, internal strife, and the invasion of the others, all of it emerged together. 

In such a world, there was such a young man. He made his way upstream, stepping on blood, defying the emperor, destroying the various kings, and slaughtering his way through the hundred clans to form an Immortal Path towards the throne of Sovereign! The Immortal Path was endless, while the Sovereign was limited. He used his blood to forge his immortal legend.

- Description from Novelupdates

I’ve reincarnated as the reverse harem game’s villainess, the one and only step-daughter of the Eckart duke family.

Kurokami Haruto, a 16-year-old high school student, lives an ordinary life with his older sister Kurokami Satsuki—a beautiful, gentle nurse who’s… a little too devoted to her little brother.Haruto always dismissed rumors about “Awakened Ones”—people who suddenly gained supernatural powers—as nothing more than internet nonsense. Until one day, after fighting with scoundrels to defend a strange girl, he woke up to a system interface flashing before his eyes:> 《 SYSTEM: “Chosen of the Abyss” Activated 》> • Main Skill: [Moonlight Blade Manifestation] - Summon up to three spectral swords.> • Main skill: [Abyssal Devour] – Absorbs energy from the moon, converting it into personal strengths.> • Hidden Skill (Rare): [Yandere EXP Farm] – Whenever a yandere develops feelings for him, all main skills gain double experience.> • System Service: “Scanning for yanderes within 10 miles… Detected: 1 target:Kurokami Satsuki.”Haruto: “…What is this?! My onee-chan?!”