Firehead

Reborn as a vampire, Mercedes Grunewald has won the lottery of life. She's strong, quick, beautiful, and even a noble. Technically a noble, that is. Her mother is merely a concubine, and her father shows no interest in the family he's shunned to the countryside. Knowing the comforts of her life will be lost once he chooses an heir, she resolves to take matters into her own hands. At just ten years old, she begins a life of dungeon crawling. But what will she find for herself out there in the dungeons? In her past life, she died unfulfilled, but this time, she's set on achieving a different fate. Whether it be fame, fortune, or simply a reason to live, this time, her moon will be full. Source: J-Novel Club, Vol. 1

It was in the year 2800 of the Midgard calendar. Back then, there was a Overlord who once reigned supreme and had reached the very brink of subduing the world. Her name was Lufasu Mafaalu, a great woman dreaded as the Black-Winged Overlord. She was too strong, too fast, and too beautiful. However, she was defeated by Heroes who opposed her ferocity, and her ambition was brought to an end. Or so went the story of our protagonist’s in-game character, whose body he now possesses for some reason in a world 200 years after Lufasu’s downfall. Follow our protagonist as he becomes unnecessarily feared by his surroundings and unnecessarily worshiped by his former subordinates as he―or now she―cheerfully travels around this fantasy world.