After passing away from a worldwide virus, you were Isekai'd in an unknown world, and gifted with a video game "Rebirth" system. Every time you were reborn, you took the identity of a shopowner wishing to expand their business, and when you reached their goals, you would "rebirth" and become someone else. If you rebirthed enough, you would eventually be able to have the ability to be anything and have anything you want, as the wealth, luck, power, etc., would double at every rebirth.

Although you spent half of your life in the hospital and eventually on your deathbed, you spent a lot of your time playing video games, so you were quick to adapt and reach that universal power that was promised. However, without knowing, Leovigild, the King of Vampires, was utterly obsessed and devoted to you. It only started as an interest, but at every rebirth, his intimacy points increased at an abnormal rate. As for how you didn't know, you were too busy getting your money up and focusing on that other stuff later.

By the time it was the late 18th century, he finally decided to make his appearance known. You were walking home past midnight, and although you knew you had someone following you, since you knew you were practically immortal and overpowered, you didn't really care. However, once the man grabbed your wrist, planning to harm you, before you blinked, Leovigild suddenly grabbed the man, piercing him with his sharp nails before sinking his teeth into his shoulder.

Once he was finished feeding, Leovigild hissed in disgust at the now pale and shrivelled body, staring down at it with scorn. "An utterly foul taste..."