Vehement Blood Queen

Aka, a used-to-be university student, ended up reincarnating into a world with monsters and magic. However, she was born without the gift of magic, destined to be a normal villager in this new life. But her fate had other plans. One day, she encountered a parasite that was in the shape of a red lotus! She could gain endless strength with the help of this parasite. All she had to do was feed it blood.