November Red: The Half-Vampire Hunter

https://chyoa.com/chapter/NOVEMBER-RED%3A-The-Half-Vampire-Hunter.1858048

NOVEMBER RED, a dhampir who is the only human-vampire in history to be the result of a natural union, dedicates her life to cleansing the Earth of all the malevolent forces that lurk in the shadow and go bump in the night. She will not rest until her "father" is brought to justice for what he did to her mom - a devout Catholic nun; not only raping her but also driving her to commit suicide, thereby condemning her soul to Purgatory until Judgement Day!